{"id":"CVE-2026-53093","title":"wifi: brcmfmac: Fix error pointer dereference","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: brcmfmac: Fix error pointer dereference\n\nThe function brcmf_chip_add_core() can return an error pointer and is\nnot checked. Add checks for error pointer.\n\nDetecte…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= cb7cf7be9eba76f3cd6258906074c72084570c84 < a3b45090a91e2f0b9715870d8f8d9ca2fdfbc1af","Linux >= cb7cf7be9eba76f3cd6258906074c72084570c84 < 99ef547659178eef6d6ba4738a9d989ce90cf909","Linux >= cb7cf7be9eba76f3cd6258906074c72084570c84 < bd6c906e0c4af6d5d0c49c3c4ee090b4913da17d","Linux >= cb7cf7be9eba76f3cd6258906074c72084570c84 < d3f280be48f1c672cb10e8026c236d0cca60048a","Linux >= cb7cf7be9eba76f3cd6258906074c72084570c84 < 2e0e5a43ed126f896a4ad31ade66c90270601bae","Linux >= cb7cf7be9eba76f3cd6258906074c72084570c84 < cbea71b4480394708f9a6e007a0385acfe5e1ec8","Linux >= cb7cf7be9eba76f3cd6258906074c72084570c84 < 334c68750eee84c2327db1d152be83ff5ad8e20b","Linux >= cb7cf7be9eba76f3cd6258906074c72084570c84 < dd8592fc6007a451c3e4b9025de365e39de8178a","Linux 3.15"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-06T16:18:16.323882Z"},"published":"2026-06-24","updated":"2026-11-06","sourceUpdated":"2026-11-06T16:23:59.189Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-53093","references":[{"url":"https://git.kernel.org/stable/c/a3b45090a91e2f0b9715870d8f8d9ca2fdfbc1af"},{"url":"https://git.kernel.org/stable/c/99ef547659178eef6d6ba4738a9d989ce90cf909"},{"url":"https://git.kernel.org/stable/c/bd6c906e0c4af6d5d0c49c3c4ee090b4913da17d"},{"url":"https://git.kernel.org/stable/c/d3f280be48f1c672cb10e8026c236d0cca60048a"},{"url":"https://git.kernel.org/stable/c/2e0e5a43ed126f896a4ad31ade66c90270601bae"},{"url":"https://git.kernel.org/stable/c/cbea71b4480394708f9a6e007a0385acfe5e1ec8"},{"url":"https://git.kernel.org/stable/c/334c68750eee84c2327db1d152be83ff5ad8e20b"},{"url":"https://git.kernel.org/stable/c/dd8592fc6007a451c3e4b9025de365e39de8178a"}],"tags":["cve.org"],"epss":0.00162,"epssPercentile":0.05466,"ingestedAt":"2026-11-06T16:57:43.294Z","slug":"CVE-2026-53093","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nwifi: brcmfmac: Fix error pointer dereference\n\nThe function brcmf_chip_add_core() can return an error pointer and is\nnot checked. Add checks for error pointer.\n\nDetected by Smatch:\ndrivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c:1010 brcmf_chip_recognition() error:\n'core' dereferencing possible ERR_PTR()\n\ndrivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c:1013 brcmf_chip_recognition() error:\n'core' dereferencing possible ERR_PTR()\n\ndrivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c:1016 brcmf_chip_recognition() error:\n'core' dereferencing possible ERR_PTR()\n\ndrivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c:1019 brcmf_chip_recognition() error:\n'core' dereferencing possible ERR_PTR()\n\ndrivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c:1022 brcmf_chip_recognition() error:\n'core' dereferencing possible ERR_PTR()\n\n[add missing wifi: prefix]\n\n## Affected\n\n- `Linux >= cb7cf7be9eba76f3cd6258906074c72084570c84 < a3b45090a91e2f0b9715870d8f8d9ca2fdfbc1af`\n- `Linux >= cb7cf7be9eba76f3cd6258906074c72084570c84 < 99ef547659178eef6d6ba4738a9d989ce90cf909`\n- `Linux >= cb7cf7be9eba76f3cd6258906074c72084570c84 < bd6c906e0c4af6d5d0c49c3c4ee090b4913da17d`\n- `Linux >= cb7cf7be9eba76f3cd6258906074c72084570c84 < d3f280be48f1c672cb10e8026c236d0cca60048a`\n- `Linux >= cb7cf7be9eba76f3cd6258906074c72084570c84 < 2e0e5a43ed126f896a4ad31ade66c90270601bae`\n- `Linux >= cb7cf7be9eba76f3cd6258906074c72084570c84 < cbea71b4480394708f9a6e007a0385acfe5e1ec8`\n- `Linux >= cb7cf7be9eba76f3cd6258906074c72084570c84 < 334c68750eee84c2327db1d152be83ff5ad8e20b`\n- `Linux >= cb7cf7be9eba76f3cd6258906074c72084570c84 < dd8592fc6007a451c3e4b9025de365e39de8178a`\n- `Linux 3.15`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}