0.0
NA
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
Affected Products

The following products are affected by CVE-2026-53093 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
Solution
Apply Linux kernel updates to fix error pointer dereferences in the brcmfmac driver.
  • Update the Linux kernel to the latest version.
  • Verify the brcmfmac driver is updated.
  • Ensure error pointers are properly checked.
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.

  • 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
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.