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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-10-16 10:18:49 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-10-16 10:18:49 +0200
commitfe2017ba24f318e5feef487b7552e40a3de2d50a (patch)
tree59f3695ecd07645910210156fc8255da99aba6f7 /kernel/bpf/syscall.c
parentdd976a97d15b47656991e185a94ef42a0fa5cfd4 (diff)
parent58720809f52779dc0f08e53e54b014209d13eebb (diff)
Merge 6.6-rc6 into tty-next
We need the tty/serial fixes in here as well for testing, and this resolves merge conflicts in: drivers/tty/serial/serial_core.c as reported in linux-next Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/bpf/syscall.c')
-rw-r--r--kernel/bpf/syscall.c21
1 files changed, 15 insertions, 6 deletions
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index eb01c31ed591..d77b2f8b9364 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -3796,7 +3796,6 @@ static int bpf_prog_attach(const union bpf_attr *attr)
{
enum bpf_prog_type ptype;
struct bpf_prog *prog;
- u32 mask;
int ret;
if (CHECK_ATTR(BPF_PROG_ATTACH))
@@ -3805,10 +3804,16 @@ static int bpf_prog_attach(const union bpf_attr *attr)
ptype = attach_type_to_prog_type(attr->attach_type);
if (ptype == BPF_PROG_TYPE_UNSPEC)
return -EINVAL;
- mask = bpf_mprog_supported(ptype) ?
- BPF_F_ATTACH_MASK_MPROG : BPF_F_ATTACH_MASK_BASE;
- if (attr->attach_flags & ~mask)
- return -EINVAL;
+ if (bpf_mprog_supported(ptype)) {
+ if (attr->attach_flags & ~BPF_F_ATTACH_MASK_MPROG)
+ return -EINVAL;
+ } else {
+ if (attr->attach_flags & ~BPF_F_ATTACH_MASK_BASE)
+ return -EINVAL;
+ if (attr->relative_fd ||
+ attr->expected_revision)
+ return -EINVAL;
+ }
prog = bpf_prog_get_type(attr->attach_bpf_fd, ptype);
if (IS_ERR(prog))
@@ -3878,6 +3883,10 @@ static int bpf_prog_detach(const union bpf_attr *attr)
if (IS_ERR(prog))
return PTR_ERR(prog);
}
+ } else if (attr->attach_flags ||
+ attr->relative_fd ||
+ attr->expected_revision) {
+ return -EINVAL;
}
switch (ptype) {
@@ -3913,7 +3922,7 @@ static int bpf_prog_detach(const union bpf_attr *attr)
return ret;
}
-#define BPF_PROG_QUERY_LAST_FIELD query.link_attach_flags
+#define BPF_PROG_QUERY_LAST_FIELD query.revision
static int bpf_prog_query(const union bpf_attr *attr,
union bpf_attr __user *uattr)