CVE-2026-53093
wifi: brcmfmac: Fix error pointer dereference
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]
INFO
Published Date :
June 24, 2026, 5:17 p.m.
Last Modified :
July 14, 2026, 3:26 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
- Update the Linux kernel to the latest version.
- Verify the brcmfmac driver is updated.
- Ensure error pointers are properly checked.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-53093.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-53093 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-53093
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-53093 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-53093 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 24, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'cb7cf7be9eba76f3cd6258906074c72084570c84', 'lessThan': 'a3b45090a91e2f0b9715870d8f8d9ca2fdfbc1af', 'versionType': 'git'}, {'status': 'affected', 'version': 'cb7cf7be9eba76f3cd6258906074c72084570c84', 'lessThan': '99ef547659178eef6d6ba4738a9d989ce90cf909', 'versionType': 'git'}, {'status': 'affected', 'version': 'cb7cf7be9eba76f3cd6258906074c72084570c84', 'lessThan': 'bd6c906e0c4af6d5d0c49c3c4ee090b4913da17d', 'versionType': 'git'}, {'status': 'affected', 'version': 'cb7cf7be9eba76f3cd6258906074c72084570c84', 'lessThan': 'd3f280be48f1c672cb10e8026c236d0cca60048a', 'versionType': 'git'}, {'status': 'affected', 'version': 'cb7cf7be9eba76f3cd6258906074c72084570c84', 'lessThan': '2e0e5a43ed126f896a4ad31ade66c90270601bae', 'versionType': 'git'}, {'status': 'affected', 'version': 'cb7cf7be9eba76f3cd6258906074c72084570c84', 'lessThan': 'cbea71b4480394708f9a6e007a0385acfe5e1ec8', 'versionType': 'git'}, {'status': 'affected', 'version': 'cb7cf7be9eba76f3cd6258906074c72084570c84', 'lessThan': '334c68750eee84c2327db1d152be83ff5ad8e20b', 'versionType': 'git'}, {'status': 'affected', 'version': 'cb7cf7be9eba76f3cd6258906074c72084570c84', 'lessThan': 'dd8592fc6007a451c3e4b9025de365e39de8178a', 'versionType': 'git'}], 'programFiles': ['drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '3.15'}, {'status': 'unaffected', 'version': '0', 'lessThan': '3.15', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.258', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.209', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.175', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.141', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.91', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.33', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.0.10', 'versionType': 'semver', 'lessThanOrEqual': '7.0.*'}, {'status': 'unaffected', 'version': '7.1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c'], 'defaultStatus': 'affected'}] Added 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] Added Reference https://git.kernel.org/stable/c/2e0e5a43ed126f896a4ad31ade66c90270601bae Added Reference https://git.kernel.org/stable/c/334c68750eee84c2327db1d152be83ff5ad8e20b Added Reference https://git.kernel.org/stable/c/99ef547659178eef6d6ba4738a9d989ce90cf909 Added Reference https://git.kernel.org/stable/c/a3b45090a91e2f0b9715870d8f8d9ca2fdfbc1af Added Reference https://git.kernel.org/stable/c/bd6c906e0c4af6d5d0c49c3c4ee090b4913da17d Added Reference https://git.kernel.org/stable/c/cbea71b4480394708f9a6e007a0385acfe5e1ec8 Added Reference https://git.kernel.org/stable/c/d3f280be48f1c672cb10e8026c236d0cca60048a Added Reference https://git.kernel.org/stable/c/dd8592fc6007a451c3e4b9025de365e39de8178a