CVE-2026-53093

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: Fix error pointer dereference The function brcmf_chip_add_core() can return an error pointer and is not checked. Add checks for error pointer. Detected by Smatch: drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c:1010 brcmf_chip_recognition() error: 'core' dereferencing possible ERR_PTR() drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c:1013 brcmf_chip_recognition() error: 'core' dereferencing possible ERR_PTR() drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c:1016 brcmf_chip_recognition() error: 'core' dereferencing possible ERR_PTR() drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c:1019 brcmf_chip_recognition() error: 'core' dereferencing possible ERR_PTR() drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c:1022 brcmf_chip_recognition() error: 'core' dereferencing possible ERR_PTR() [add missing wifi: prefix]

References

• https://git.kernel.org/stable/c/2e0e5a43ed126f896a4ad31ade66c90270601bae
• https://git.kernel.org/stable/c/334c68750eee84c2327db1d152be83ff5ad8e20b
• https://git.kernel.org/stable/c/99ef547659178eef6d6ba4738a9d989ce90cf909
• https://git.kernel.org/stable/c/a3b45090a91e2f0b9715870d8f8d9ca2fdfbc1af
• https://git.kernel.org/stable/c/bd6c906e0c4af6d5d0c49c3c4ee090b4913da17d