diff options
| author | Vernon Yang <yanglincheng@kylinos.cn> | 2025-09-05 02:25:27 +0800 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2025-09-11 17:55:33 -0500 |
| commit | 0a27bdb14b028fed30a10cec2f945c38cb5ca4fa (patch) | |
| tree | 23d5897cdb6d828af8d76b64e83dccd8aec02485 | |
| parent | c8ab5e888bb6721e6e084881e6e24ef2678832c3 (diff) | |
PCI/AER: Fix NULL pointer access by aer_info
The kzalloc(GFP_KERNEL) may return NULL, so all accesses to aer_info->xxx
will result in kernel panic. Fix it.
Signed-off-by: Vernon Yang <yanglincheng@kylinos.cn>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://patch.msgid.link/20250904182527.67371-1-vernon2gm@gmail.com
| -rw-r--r-- | drivers/pci/pcie/aer.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/pci/pcie/aer.c b/drivers/pci/pcie/aer.c index 62c74b5f99ae..cd0f0b17f097 100644 --- a/drivers/pci/pcie/aer.c +++ b/drivers/pci/pcie/aer.c @@ -393,6 +393,10 @@ void pci_aer_init(struct pci_dev *dev) return; dev->aer_info = kzalloc(sizeof(*dev->aer_info), GFP_KERNEL); + if (!dev->aer_info) { + dev->aer_cap = 0; + return; + } ratelimit_state_init(&dev->aer_info->correctable_ratelimit, DEFAULT_RATELIMIT_INTERVAL, DEFAULT_RATELIMIT_BURST); |