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2025-05-05riscv: misaligned: Add handling for ZCB instructionsNylon Chen
Add support for the Zcb extension's compressed half-word instructions (C.LHU, C.LH, and C.SH) in the RISC-V misaligned access trap handler. Signed-off-by: Zong Li <zong.li@sifive.com> Signed-off-by: Nylon Chen <nylon.chen@sifive.com> Fixes: 956d705dd279 ("riscv: Unaligned load/store handling for M_MODE") Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com> Link: https://lore.kernel.org/r/20250411073850.3699180-2-nylon.chen@sifive.com Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
2025-05-05arm64: dts: amlogic: dreambox: fix missing clkc_audio nodeChristian Hewitt
Add the clkc_audio node to fix audio support on Dreambox One/Two. Fixes: 83a6f4c62cb1 ("arm64: dts: meson: add initial support for Dreambox One/Two") CC: stable@vger.kernel.org Suggested-by: Emanuel Strobel <emanuel.strobel@yahoo.com> Signed-off-by: Christian Hewitt <christianshewitt@gmail.com> Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Link: https://lore.kernel.org/r/20250503084443.3704866-1-christianshewitt@gmail.com Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
2025-05-05selftests: netfilter: nft_fib.sh: check lo packets bypass fib lookupFlorian Westphal
With reverted fix: PASS: fib expression did not cause unwanted packet drops [ 37.285169] ns1-KK76Kt nft_rpfilter: IN=lo OUT= MAC=00:00:00:00:00:00:00:00:00:00:00:00:08:00 SRC=127.0.0.1 DST=127.0.0.1 LEN=84 TOS=0x00 PREC=0x00 TTL=64 ID=32287 DF PROTO=ICMP TYPE=8 CODE=0 ID=1818 SEQ=1 FAIL: rpfilter did drop packets FAIL: ns1-KK76Kt cannot reach 127.0.0.1, ret 0 Check for this. Link: https://lore.kernel.org/netfilter/20250422114352.GA2092@breakpoint.cc/ Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2025-05-05netfilter: nft_set_pipapo: clamp maximum map bucket size to INT_MAXPablo Neira Ayuso
Otherwise, it is possible to hit WARN_ON_ONCE in __kvmalloc_node_noprof() when resizing hashtable because __GFP_NOWARN is unset. Similar to: b541ba7d1f5a ("netfilter: conntrack: clamp maximum hashtable size to INT_MAX") Reviewed-by: Stefano Brivio <sbrivio@redhat.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2025-05-05netfilter: nft_set_pipapo: prevent overflow in lookup table allocationPablo Neira Ayuso
When calculating the lookup table size, ensure the following multiplication does not overflow: - desc->field_len[] maximum value is U8_MAX multiplied by NFT_PIPAPO_GROUPS_PER_BYTE(f) that can be 2, worst case. - NFT_PIPAPO_BUCKETS(f->bb) is 2^8, worst case. - sizeof(unsigned long), from sizeof(*f->lt), lt in struct nft_pipapo_field. Then, use check_mul_overflow() to multiply by bucket size and then use check_add_overflow() to the alignment for avx2 (if needed). Finally, add lt_size_check_overflow() helper and use it to consolidate this. While at it, replace leftover allocation using the GFP_KERNEL to GFP_KERNEL_ACCOUNT for consistency, in pipapo_resize(). Fixes: 3c4287f62044 ("nf_tables: Add set type for arbitrary concatenation of ranges") Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Reviewed-by: Stefano Brivio <sbrivio@redhat.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2025-05-05netfilter: nf_conntrack: speed up reads from nf_conntrack proc fileFlorian Westphal
Dumping all conntrack entries via proc interface can take hours due to linear search to skip entries dumped so far in each cycle. Apply same strategy used to speed up ipvs proc reading done in commit 178883fd039d ("ipvs: speed up reads from ip_vs_conn proc file") to nf_conntrack. Note that the ctnetlink interface doesn't suffer from this problem, but many scripts depend on the nf_conntrack proc interface. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2025-05-05netfilter: nft_quota: match correctly when the quota just depletedZhongqiu Duan
The xt_quota compares skb length with remaining quota, but the nft_quota compares it with consumed bytes. The xt_quota can match consumed bytes up to quota at maximum. But the nft_quota break match when consumed bytes equal to quota. i.e., nft_quota match consumed bytes in [0, quota - 1], not [0, quota]. Fixes: 795595f68d6c ("netfilter: nft_quota: dump consumed quota") Signed-off-by: Zhongqiu Duan <dzq.aishenghu0@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2025-05-05selftests: netfilter: add conntrack stress testFlorian Westphal
Add a new test case to check: - conntrack_max limit is effective - conntrack_max limit cannot be exceeded from within a netns - resizing the hash table while packets are inflight works - removal of all conntrack rules disables conntrack in netns - conntrack tool dump (conntrack -L) returns expected number of (unique) entries - procfs interface - if available - has same number of entries as conntrack -L dump Expected output with selftest framework: selftests: net/netfilter: conntrack_resize.sh PASS: got 1 connections: netns conntrack_max is pernet bound PASS: got 100 connections: netns conntrack_max is init_net bound PASS: dump in netns had same entry count (-C 1778, -L 1778, -p 1778, /proc 0) PASS: dump in netns had same entry count (-C 2000, -L 2000, -p 2000, /proc 0) PASS: test parallel conntrack dumps PASS: resize+flood PASS: got 0 connections: conntrack disabled PASS: got 1 connections: conntrack enabled ok 1 selftests: net/netfilter: conntrack_resize.sh Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2025-05-05netfilter: bridge: Move specific fragmented packet to slow_path instead of ↵Huajian Yang
dropping it The config NF_CONNTRACK_BRIDGE will change the bridge forwarding for fragmented packets. The original bridge does not know that it is a fragmented packet and forwards it directly, after NF_CONNTRACK_BRIDGE is enabled, function nf_br_ip_fragment and br_ip6_fragment will check the headroom. In original br_forward, insufficient headroom of skb may indeed exist, but there's still a way to save the skb in the device driver after dev_queue_xmit.So droping the skb will change the original bridge forwarding in some cases. Fixes: 3c171f496ef5 ("netfilter: bridge: add connection tracking system") Signed-off-by: Huajian Yang <huajianyang@asrmicro.com> Reviewed-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2025-05-05spi: loopback-test: Do not split 1024-byte hexdumpsGeert Uytterhoeven
spi_test_print_hex_dump() prints buffers holding less than 1024 bytes in full. Larger buffers are truncated: only the first 512 and the last 512 bytes are printed, separated by a truncation message. The latter is confusing in case the buffer holds exactly 1024 bytes, as all data is printed anyway. Fix this by printing buffers holding up to and including 1024 bytes in full. Fixes: 84e0c4e5e2c4ef42 ("spi: add loopback test driver to allow for spi_master regression tests") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://patch.msgid.link/37ee1bc90c6554c9347040adabf04188c8f704aa.1746184171.git.geert+renesas@glider.be Signed-off-by: Mark Brown <broonie@kernel.org>
2025-05-05ASoC: mediatek: mt8188-mt6359: select CONFIG_SND_SOC_MT6359_ACCDETArnd Bergmann
The driver support was added without selecting the codec, which leads to a link failure: aarch64-linux-ld: sound/soc/mediatek/mt8188/mt8188-mt6359.o: in function `mt8188_mt6359_init': mt8188-mt6359.c:(.text+0x19f0): undefined reference to `mt6359_accdet_enable_jack_detect' Fixes: f35d834d67ad ("ASoC: mediatek: mt8188-mt6359: Add accdet headset jack detect support") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://patch.msgid.link/20250505052106.1811802-1-arnd@kernel.org Signed-off-by: Mark Brown <broonie@kernel.org>
2025-05-05drm/i915/slpc: Balance the inc/dec for num_waitersVinay Belgaumkar
As seen in some recent failures, SLPC num_waiters value is < 0. This happens because the inc/dec are not balanced. We should skip decrement for the same conditions as the increment. Currently, we do that for power saving profile mode. This patch also ensures that num_waiters is incremented in the case min_softlimit is at boost freq. It ensures that we don't reduce the frequency while this request is in flight. v2: Add Fixes tags Closes: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/13598 Fixes: f864a29afc32 ("drm/i915/slpc: Optmize waitboost for SLPC") Fixes: 4a82ceb04ad4 ("drm/i915/slpc: Add sysfs for SLPC power profiles") Cc: Sk Anirban <sk.anirban@intel.com> Reviewed-by: Sk Anirban <sk.anirban@intel.com> Signed-off-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com> Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Link: https://lore.kernel.org/r/20250428183555.3250021-1-vinay.belgaumkar@intel.com (cherry picked from commit d26e55085f4b7a63677670db827541209257b313) Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2025-05-05x86/microcode: Consolidate the loader enablement checkingBorislav Petkov (AMD)
Consolidate the whole logic which determines whether the microcode loader should be enabled or not into a single function and call it everywhere. Well, almost everywhere - not in mk_early_pgtbl_32() because there the kernel is running without paging enabled and checking dis_ucode_ldr et al would require physical addresses and uglification of the code. But since this is 32-bit, the easier thing to do is to simply map the initrd unconditionally especially since that mapping is getting removed later anyway by zap_early_initrd_mapping() and avoid the uglification. In doing so, address the issue of old 486er machines without CPUID support, not booting current kernels. [ mingo: Fix no previous prototype for ‘microcode_loader_disabled’ [-Wmissing-prototypes] ] Fixes: 4c585af7180c1 ("x86/boot/32: Temporarily map initrd for microcode loading") Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Cc: <stable@kernel.org> Link: https://lore.kernel.org/r/CANpbe9Wm3z8fy9HbgS8cuhoj0TREYEEkBipDuhgkWFvqX0UoVQ@mail.gmail.com
2025-05-05um: fix _nofault accessesJohannes Berg
Nathan reported [1] that when built with clang, the um kernel crashes pretty much immediately. This turned out to be an issue with the inline assembly I had added, when clang used %rax/%eax for both operands. Reorder it so current->thread.segv_continue is written first, and then the lifetime of _faulted won't have overlap with the lifetime of segv_continue. In the email thread Benjamin also pointed out that current->mm is only NULL for true kernel tasks, but we could do this for a userspace task, so the current->thread.segv_continue logic must be lifted out of the mm==NULL check. Finally, while looking at this, put a barrier() so the NULL assignment to thread.segv_continue cannot be reorder before the possibly faulting operation. Reported-by: Nathan Chancellor <nathan@kernel.org> Closes: https://lore.kernel.org/r/20250402221254.GA384@ax162 [1] Fixes: d1d7f01f7cd3 ("um: mark rodata read-only and implement _nofault accesses") Tested-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-05-05wifi: rtw89: constrain TX power according to dynamic antenna power tableKuan-Chung Chen
Dynamic Antenna Gain (DAG) adjusts TX power based on antenna gain. To prevent signal distortion from excessive power increases, a dynamic antenna power table limits the maximum adjustable TX power. Signed-off-by: Kuan-Chung Chen <damon.chen@realtek.com> Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Link: https://patch.msgid.link/20250430055157.13623-3-pkshih@realtek.com
2025-05-05wifi: rtw89: phy: add C2H event handler for report of FW scanKuan-Chung Chen
Newer firmware will notify driver of the Packet Detection (PD) value on the channel after switch channels during FW scan. Signed-off-by: Kuan-Chung Chen <damon.chen@realtek.com> Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Link: https://patch.msgid.link/20250430055157.13623-2-pkshih@realtek.com
2025-05-05wifi: rtw89: Fix inadverent sharing of struct ieee80211_supported_band dataOndrej Jirman
Internally wiphy writes to individual channels in this structure, so we must not share one static definition of channel list between multiple device instances, because that causes hard to debug breakage. For example, with two rtw89 driven devices in the system, channel information may get incoherent, preventing channel use. Signed-off-by: Ondrej Jirman <megi@xff.cz> Acked-by: Ping-Ke Shih <pkshih@realtek.com> Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Link: https://patch.msgid.link/20250429122916.1734879-3-megi@xff.cz
2025-05-05wifi: rtw89: Convert rtw89_core_set_supported_band to use devm_*Ondrej Jirman
The code can be simplified by using device managed memory allocations. Simplify it. Signed-off-by: Ondrej Jirman <megi@xff.cz> Acked-by: Ping-Ke Shih <pkshih@realtek.com> Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Link: https://patch.msgid.link/20250429122916.1734879-2-megi@xff.cz
2025-05-05wifi: rtw89: introduce helper to get designated link for MLOZong-Zhe Yang
A link bound to HW band 0 was previously always assumed to exist, because it's true on non-MLD connection, and MLO connection is not supported yet. Now, start to consider MLO cases and prepare to enable MLO support in the following. Add skeleton of designated link. For single-link cases, helper returns the one. For multi-link cases, priorities can be scheduled. Then, drop assumption of link bound to HW band 0. One exception is that MCC doesn't work with MLD yet, so it still expects link on HW band 0 somewhere. Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com> Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Link: https://patch.msgid.link/20250428112456.13165-11-pkshih@realtek.com
2025-05-05wifi: rtw89: roc: dynamically handle link id and link instance indexZong-Zhe Yang
Originally, a macro, RTW89_ROC_BY_LINK_INDEX, is used to decide the link which deals with the ROC process. Before enabling MLO support, it's fine to hard-code RTW89_ROC_BY_LINK_INDEX as 0 since the link instance-0 (on HW-0) is always active. But, for the impending enablement of MLO support, tweak the leaf functions to dynamically handle ROC link instance index. Besides, in the follow-up, ROC caller will get a designated link and will then drop RTW89_ROC_BY_LINK_INDEX. Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com> Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Link: https://patch.msgid.link/20250428112456.13165-10-pkshih@realtek.com
2025-05-05wifi: rtw89: Fill in correct Rx link ID for MLOPo-Hao Huang
For MLO connections, RX link ID is required to do address conversion. Fill it in by the hardware info. Signed-off-by: Po-Hao Huang <phhuang@realtek.com> Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Link: https://patch.msgid.link/20250428112456.13165-9-pkshih@realtek.com
2025-05-05wifi: rtw89: add MLD capabilities declarationPo-Hao Huang
Add MLD capabilities so association requests can carry multi-link element with correct content. Signed-off-by: Po-Hao Huang <phhuang@realtek.com> Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Link: https://patch.msgid.link/20250428112456.13165-8-pkshih@realtek.com
2025-05-05wifi: rtw89: extend join_info H2C command for MLO fieldsPo-Hao Huang
The join_info H2C command is used to indicate a station is connected and tell FW to create/maintain an instance for it. Extend to fill MLO fields. Signed-off-by: Po-Hao Huang <phhuang@realtek.com> Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com> Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Link: https://patch.msgid.link/20250428112456.13165-7-pkshih@realtek.com
2025-05-05wifi: rtw89: Configure scan band when mlo_dbcc_mode changesPo-Hao Huang
Previously only the first band is used for scanning. With MLO, update scan parameters accordingly by so we can choose to scan from either band. C2H event return value reflects current scanning band, mask it out so we don't treat correct return value as fail. Signed-off-by: Po-Hao Huang <phhuang@realtek.com> Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Link: https://patch.msgid.link/20250428112456.13165-6-pkshih@realtek.com
2025-05-05wifi: rtw89: extend mapping from Qsel to DMA ch for MLOZong-Zhe Yang
After impending MLO support, TX Qsel would come from other HW band rather than HW-0. For example, when working on HW-1, TX release report may fill QSEL_XX_1 and cause warning "Cannot map qsel to dma: ...". So, extend the mapping to recognize multiple HW bands. Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com> Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Link: https://patch.msgid.link/20250428112456.13165-5-pkshih@realtek.com
2025-05-05wifi: rtw89: Adjust management queue mapping for [MLO, HW-1]Po-Hao Huang
Adjust mapping of management packets accordingly to send it on the second hardware band. Previously only single band is used and we plan to enable MLO, so the second band will be needed. Data packets will be steered by hardware so no related changes are required. Signed-off-by: Po-Hao Huang <phhuang@realtek.com> Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Link: https://patch.msgid.link/20250428112456.13165-4-pkshih@realtek.com
2025-05-05wifi: rtw89: 8922a: use SW CRYPTO when broadcast in MLO modePo-Hao Huang
8922A doesn't support broadcast/multicast traffic under MLO mode. So let mac80211 do the encryption/decryption for us when the connection is in MLO mode. Future BE ICs fixes this issue. Signed-off-by: Po-Hao Huang <phhuang@realtek.com> Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Link: https://patch.msgid.link/20250428112456.13165-3-pkshih@realtek.com
2025-05-05wifi: rtw89: 8922a: rfk: adjust timeout time of RX DCKPing-Ke Shih
The RX DCK in firmware could retry 3 times if calibration value is not stable. Roughly each calibration can be done within 16 ms, so expect 16 * 4 (with additional 16 ms) will be enough. More, in coming MLO, it will do calibration on two path, so multiply 2. Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Link: https://patch.msgid.link/20250428112456.13165-2-pkshih@realtek.com
2025-05-05wifi: rtw89: fw: Remove "const" on allocation typeKees Cook
In preparation for making the kmalloc family of allocators type aware, we need to make sure that the returned type from the allocation matches the type of the variable being assigned. (Before, the allocator would always return "void *", which can be implicitly cast to any pointer type.) The assigned type is "struct rtw89_reg2_def *" but the returned type, while technically matching, will be const qualified. As there isn't a general way to discard "const" qualifiers, adjust the returned type to match the assigned type. No change in allocation size results. Signed-off-by: Kees Cook <kees@kernel.org> Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Link: https://patch.msgid.link/20250426060935.work.049-kees@kernel.org
2025-05-05wifi: rtlwifi: Remove unused rtl_bb_delay()Dr. David Alan Gilbert
The last use of rtl_bb_delay() was removed in 2014's commit 5c99f04fec93 ("rtlwifi: rtl8723be: Update driver to match Realtek release of 06/28/14") Remove it. Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org> Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Link: https://patch.msgid.link/20250425235340.288340-4-linux@treblig.org
2025-05-05wifi: rtlwifi: Remove uncalled stub rtl*_phy_ap_calibrateDr. David Alan Gilbert
rtl92d_phy_ap_calibrate(), rtl92du_phy_ap_calibrate(), rtl92ee_phy_ap_calibrate(), and rtl8821ae_phy_ap_calibrate() are all empty function stubs that are never called anywhere. Remove them. Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org> Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Link: https://patch.msgid.link/20250425235340.288340-3-linux@treblig.org
2025-05-05wifi: rtlwifi: Remove unused rtl_usb_{resume|suspend}Dr. David Alan Gilbert
rtl_usb_resume() and rtl_usb_suspend() are trivial stubs that were added in 2011's commit 2ca20f79e0d8 ("rtlwifi: Add usb driver") but aren't wired up anywhere (though commit 442888c706e9 ("rtlwifi: rtl8192cu: Add routines dm, fw, led and sw") added commented out assignments). Remove them. Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org> Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Link: https://patch.msgid.link/20250425235340.288340-2-linux@treblig.org
2025-05-04Linux 6.15-rc5Linus Torvalds
2025-05-04Merge tag 'perf-tools-fixes-for-v6.15-2025-05-04' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools Pull perf tools fixes from Namhyung Kim: "Just a couple of build fixes on arm64" * tag 'perf-tools-fixes-for-v6.15-2025-05-04' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools: perf tools: Fix in-source libperf build perf tools: Fix arm64 build by generating unistd_64.h
2025-05-04bcachefs: thread_with_stdio: fix spinning instead of exitingKent Overstreet
bch2_stdio_redirect_vprintf() was missing a check for stdio->done, i.e. exiting. This caused the thread attempting to print to spin, and since it was being called from the kthread ran by thread_with_stdio, the userspace side hung as well. Change it to return -EPIPE - i.e. writing to a pipe that's been closed. Reported-by: Jan Solanti <jhs@psonet.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2025-05-04Merge tag 'trace-v6.15-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull tracing fixes from Steven Rostedt: - Fix read out of bounds bug in tracing_splice_read_pipe() The size of the sub page being read can now be greater than a page. But the buffer used in tracing_splice_read_pipe() only allocates a page size. The data copied to the buffer is the amount in sub buffer which can overflow the buffer. Use min((size_t)trace_seq_used(&iter->seq), PAGE_SIZE) to limit the amount copied to the buffer to a max of PAGE_SIZE. - Fix the test for NULL from "!filter_hash" to "!*filter_hash" The add_next_hash() function checked for NULL at the wrong pointer level. - Do not use the array in trace_adjust_address() if there are no elements The trace_adjust_address() finds the offset of a module that was stored in the persistent buffer when reading the previous boot buffer to see if the address belongs to a module that was loaded in the previous boot. An array is created that matches currently loaded modules with previously loaded modules. The trace_adjust_address() uses that array to find the new offset of the address that's in the previous buffer. But if no module was loaded, it ends up reading the last element in an array that was never allocated. Check if nr_entries is zero and exit out early if it is. - Remove nested lock of trace_event_sem in print_event_fields() The print_event_fields() function iterates over the ftrace_events list and requires the trace_event_sem semaphore held for read. But this function is always called with that semaphore held for read. Remove the taking of the semaphore and replace it with lockdep_assert_held_read(&trace_event_sem) * tag 'trace-v6.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: tracing: Do not take trace_event_sem in print_event_fields() tracing: Fix trace_adjust_address() when there is no modules in scratch area ftrace: Fix NULL memory allocation check tracing: Fix oob write in trace_seq_to_buffer()
2025-05-04Merge tag 'parisc-for-6.15-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux Pull parisc fix from Helge Deller: "Fix a double SIGFPE crash" * tag 'parisc-for-6.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: Fix double SIGFPE crash
2025-05-04parisc: Fix double SIGFPE crashHelge Deller
Camm noticed that on parisc a SIGFPE exception will crash an application with a second SIGFPE in the signal handler. Dave analyzed it, and it happens because glibc uses a double-word floating-point store to atomically update function descriptors. As a result of lazy binding, we hit a floating-point store in fpe_func almost immediately. When the T bit is set, an assist exception trap occurs when when the co-processor encounters *any* floating-point instruction except for a double store of register %fr0. The latter cancels all pending traps. Let's fix this by clearing the Trap (T) bit in the FP status register before returning to the signal handler in userspace. The issue can be reproduced with this test program: root@parisc:~# cat fpe.c static void fpe_func(int sig, siginfo_t *i, void *v) { sigset_t set; sigemptyset(&set); sigaddset(&set, SIGFPE); sigprocmask(SIG_UNBLOCK, &set, NULL); printf("GOT signal %d with si_code %ld\n", sig, i->si_code); } int main() { struct sigaction action = { .sa_sigaction = fpe_func, .sa_flags = SA_RESTART|SA_SIGINFO }; sigaction(SIGFPE, &action, 0); feenableexcept(FE_OVERFLOW); return printf("%lf\n",1.7976931348623158E308*1.7976931348623158E308); } root@parisc:~# gcc fpe.c -lm root@parisc:~# ./a.out Floating point exception root@parisc:~# strace -f ./a.out execve("./a.out", ["./a.out"], 0xf9ac7034 /* 20 vars */) = 0 getrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=RLIM_INFINITY}) = 0 ... rt_sigaction(SIGFPE, {sa_handler=0x1110a, sa_mask=[], sa_flags=SA_RESTART|SA_SIGINFO}, NULL, 8) = 0 --- SIGFPE {si_signo=SIGFPE, si_code=FPE_FLTOVF, si_addr=0x1078f} --- --- SIGFPE {si_signo=SIGFPE, si_code=FPE_FLTOVF, si_addr=0xf8f21237} --- +++ killed by SIGFPE +++ Floating point exception Signed-off-by: Helge Deller <deller@gmx.de> Suggested-by: John David Anglin <dave.anglin@bell.net> Reported-by: Camm Maguire <camm@maguirefamily.org> Cc: stable@vger.kernel.org
2025-05-04Merge tag 'edac_urgent_for_v6.15_rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras Pull EDAC fixes from Borislav Petkov: - Test the correct structure member when handling correctable errors and avoid spurious interrupts, in altera_edac * tag 'edac_urgent_for_v6.15_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras: EDAC/altera: Set DDR and SDMMC interrupt mask before registration EDAC/altera: Test the correct error reg offset
2025-05-04io_uring: always arm linked timeouts prior to issueJens Axboe
There are a few spots where linked timeouts are armed, and not all of them adhere to the pre-arm, attempt issue, post-arm pattern. This can be problematic if the linked request returns that it will trigger a callback later, and does so before the linked timeout is fully armed. Consolidate all the linked timeout handling into __io_issue_sqe(), rather than have it spread throughout the various issue entry points. Cc: stable@vger.kernel.org Link: https://github.com/axboe/liburing/issues/1390 Reported-by: Chase Hiltz <chase@path.net> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-05-04Merge tag 'x86-urgent-2025-05-04' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fix from Ingo Molnar: "Fix SEV-SNP memory acceptance from the EFI stub for guests running at VMPL >0" * tag 'x86-urgent-2025-05-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/boot/sev: Support memory acceptance in the EFI stub under SVSM
2025-05-04Merge tag 'perf-urgent-2025-05-04' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull misc perf fixes from Ingo Molnar: - Require group events for branch counter groups and PEBS counter snapshotting groups to be x86 events. - Fix the handling of counter-snapshotting of non-precise events, where counter values may move backwards a bit, temporarily, confusing the code. - Restrict perf/KVM PEBS to guest-owned events. * tag 'perf-urgent-2025-05-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86/intel: KVM: Mask PEBS_ENABLE loaded for guest with vCPU's value. perf/x86/intel/ds: Fix counter backwards of non-precise events counters-snapshotting perf/x86/intel: Check the X86 leader for pebs_counter_event_group perf/x86/intel: Only check the group flag for X86 leader
2025-05-04Merge tag 'irq-urgent-2025-05-04' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq fixes from Ingo Molnar: - Prevent NULL pointer dereference in msi_domain_debug_show() - Fix crash in the qcom-mpm irqchip driver when configuring interrupts for non-wake GPIOs * tag 'irq-urgent-2025-05-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip/qcom-mpm: Prevent crash when trying to handle non-wake GPIOs genirq/msi: Prevent NULL pointer dereference in msi_domain_debug_show()
2025-05-04x86/boot/sev: Support memory acceptance in the EFI stub under SVSMArd Biesheuvel
Commit: d54d610243a4 ("x86/boot/sev: Avoid shared GHCB page for early memory acceptance") provided a fix for SEV-SNP memory acceptance from the EFI stub when running at VMPL #0. However, that fix was insufficient for SVSM SEV-SNP guests running at VMPL >0, as those rely on a SVSM calling area, which is a shared buffer whose address is programmed into a SEV-SNP MSR, and the SEV init code that sets up this calling area executes much later during the boot. Given that booting via the EFI stub at VMPL >0 implies that the firmware has configured this calling area already, reuse it for performing memory acceptance in the EFI stub. Fixes: fcd042e86422 ("x86/sev: Perform PVALIDATE using the SVSM when not at VMPL0") Tested-by: Tom Lendacky <thomas.lendacky@amd.com> Co-developed-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Cc: <stable@vger.kernel.org> Cc: Dionna Amalie Glaze <dionnaglaze@google.com> Cc: Kevin Loughlin <kevinloughlin@google.com> Cc: linux-efi@vger.kernel.org Link: https://lore.kernel.org/r/20250428174322.2780170-2-ardb+git@google.com
2025-05-03Merge tag 'arm64-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fix from Catalin Marinas: "Add missing sentinels to the arm64 Spectre-BHB MIDR arrays, otherwise is_midr_in_range_list() reads beyond the end of these arrays" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: errata: Add missing sentinels to Spectre-BHB MIDR arrays
2025-05-03Merge tag 'i2c-for-6.15-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c fix from Wolfram Sang: - imx-lpi2c: fix clock error handling sequence in probe * tag 'i2c-for-6.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: imx-lpi2c: Fix clock count when probe defers
2025-05-03ipv4: Honor "ignore_routes_with_linkdown" sysctl in nexthop selectionIdo Schimmel
Commit 32607a332cfe ("ipv4: prefer multipath nexthop that matches source address") changed IPv4 nexthop selection to prefer a nexthop whose nexthop device is assigned the specified source address for locally generated traffic. While the selection honors the "fib_multipath_use_neigh" sysctl and will not choose a nexthop with an invalid neighbour, it does not honor the "ignore_routes_with_linkdown" sysctl and can choose a nexthop without a carrier: $ sysctl net.ipv4.conf.all.ignore_routes_with_linkdown net.ipv4.conf.all.ignore_routes_with_linkdown = 1 $ ip route show 198.51.100.0/24 198.51.100.0/24 nexthop via 192.0.2.2 dev dummy1 weight 1 nexthop via 192.0.2.18 dev dummy2 weight 1 dead linkdown $ ip route get 198.51.100.1 from 192.0.2.17 198.51.100.1 from 192.0.2.17 via 192.0.2.18 dev dummy2 uid 0 Solve this by skipping over nexthops whose assigned hash upper bound is minus one, which is the value assigned to nexthops that do not have a carrier when the "ignore_routes_with_linkdown" sysctl is set. In practice, this probably does not matter a lot as the initial route lookup for the source address would not choose a nexthop that does not have a carrier in the first place, but the change does make the code clearer. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Reviewed-by: David Ahern <dsahern@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2025-05-03Merge tag 'sound-6.15-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "A bunch of small fixes. Mostly driver specific. - An OOB access fix in core UMP rawmidi conversion code - Fix for ASoC DAPM hw_params widget sequence - Make retry of usb_set_interface() errors for flaky devices - Fix redundant USB MIDI name strings - Quirks for various HP and ASUS models with HD-audio, and Jabra Evolve 65 USB-audio - Cirrus Kunit test fixes - Various fixes for ASoC Intel, stm32, renesas, imx-card, and simple-card" * tag 'sound-6.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (30 commits) ASoC: amd: ps: fix for irq handler return status ASoC: simple-card-utils: Fix pointer check in graph_util_parse_link_direction ASoC: intel/sdw_utils: Add volume limit to cs35l56 speakers ASoC: intel/sdw_utils: Add volume limit to cs42l43 speakers ASoC: stm32: sai: add a check on minimal kernel frequency ASoC: stm32: sai: skip useless iterations on kernel rate loop ALSA: hda/realtek - Add more HP laptops which need mute led fixup ALSA: hda/realtek: Fix built-mic regression on other ASUS models ASoC: Intel: catpt: avoid type mismatch in dev_dbg() format ALSA: usb-audio: Fix duplicated name in MIDI substream names ALSA: ump: Fix buffer overflow at UMP SysEx message conversion ALSA: usb-audio: Add second USB ID for Jabra Evolve 65 headset ALSA: hda/realtek: Add quirk for HP Spectre x360 15-df1xxx ALSA: hda: Apply volume control on speaker+lineout for HP EliteStudio AIO ASoC: Intel: bytcr_rt5640: Add DMI quirk for Acer Aspire SW3-013 ASoC: amd: acp: Fix devm_snd_soc_register_card(acp-pdm-mach) failure ASoC: amd: acp: Fix NULL pointer deref in acp_i2s_set_tdm_slot ASoC: amd: acp: Fix NULL pointer deref on acp resume path ASoC: renesas: rz-ssi: Use NOIRQ_SYSTEM_SLEEP_PM_OPS() ASoC: soc-acpi-intel-ptl-match: add empty item to ptl_cs42l43_l3[] ...
2025-05-03landlock: Remove KUnit test that triggers a warningMickaël Salaün
A KUnit test checking boundaries triggers a canary warning, which may be disturbing. Let's remove this test for now. Hopefully, KUnit will soon get support for suppressing warning backtraces [1]. Cc: Alessandro Carminati <acarmina@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Günther Noack <gnoack@google.com> Reported-by: Tingmao Wang <m@maowtm.org> Closes: https://lore.kernel.org/r/20250327213807.12964-1-m@maowtm.org Link: https://lore.kernel.org/r/20250425193249.78b45d2589575c15f483c3d8@linux-foundation.org [1] Link: https://lore.kernel.org/r/20250503065359.3625407-1-mic@digikod.net Signed-off-by: Mickaël Salaün <mic@digikod.net>
2025-05-02ipv6: Restore fib6_config validation for SIOCADDRT.Kuniyuki Iwashima
syzkaller reported out-of-bounds read in ipv6_addr_prefix(), where the prefix length was over 128. The cited commit accidentally removed some fib6_config validation from the ioctl path. Let's restore the validation. [0]: BUG: KASAN: slab-out-of-bounds in ip6_route_info_create (./include/net/ipv6.h:616 net/ipv6/route.c:3814) Read of size 1 at addr ff11000138020ad4 by task repro/261 CPU: 3 UID: 0 PID: 261 Comm: repro Not tainted 6.15.0-rc3-00614-g0d15a26b247d #87 PREEMPT(voluntary) Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014 Call Trace: <TASK> dump_stack_lvl (lib/dump_stack.c:123) print_report (mm/kasan/report.c:409 mm/kasan/report.c:521) kasan_report (mm/kasan/report.c:636) ip6_route_info_create (./include/net/ipv6.h:616 net/ipv6/route.c:3814) ip6_route_add (net/ipv6/route.c:3902) ipv6_route_ioctl (net/ipv6/route.c:4523) inet6_ioctl (net/ipv6/af_inet6.c:577) sock_do_ioctl (net/socket.c:1190) sock_ioctl (net/socket.c:1314) __x64_sys_ioctl (fs/ioctl.c:51 fs/ioctl.c:906 fs/ioctl.c:892 fs/ioctl.c:892) do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) RIP: 0033:0x7f518fb2de5d Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 73 9f 1b 00 f7 d8 64 89 01 48 RSP: 002b:00007fff14f38d18 EFLAGS: 00000202 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f518fb2de5d RDX: 00000000200015c0 RSI: 000000000000890b RDI: 0000000000000003 RBP: 00007fff14f38d30 R08: 0000000000000800 R09: 0000000000000800 R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff14f38e48 R13: 0000000000401136 R14: 0000000000403df0 R15: 00007f518fd3c000 </TASK> Fixes: fa76c1674f2e ("ipv6: Move some validation from ip6_route_info_create() to rtm_to_fib6_config().") Reported-by: syzkaller <syzkaller@googlegroups.com> Reported-by: Yi Lai <yi1.lai@linux.intel.com> Closes: https://lore.kernel.org/netdev/aBAcKDEFoN%2FLntBF@ly-workstation/ Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Reviewed-by: David Ahern <dsahern@kernel.org> Link: https://patch.msgid.link/20250501005335.53683-1-kuniyu@amazon.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>