CVE-2026-53156

nvmem: core: fix use-after-free bugs in error paths

HIGH

7.8

CVSS Score

Published: June 25, 2026 at 08:38 AM UTC

Updated: October 21, 2026 at 01:19 PM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

HIGH7.8

Exploit prediction

EPSS 0.1%

Description

In the Linux kernel, the following vulnerability has been resolved: nvmem: core: fix use-after-free bugs in error paths Fix several instances of error paths in which we call __nvmem_device_put() - which may end up freeing the underlying memory and other resources - and then keep on using the nvmem structure. Always put the reference to the nvmem device as the last step before returning the error code.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

4.20 ≤ v < 6.12.946.13 ≤ v < 6.18.366.19 ≤ v < 7.0.137.1 7.1 rc1 7.1 rc2 7.1 rc3 7.1 rc4 7.1 rc5 7.1 rc6 7.1 rc7e888d445ac33a5b0288d670ecd970908b13f07cd

Vendor states this is fixed in 40e2a459c0dd1333b2343831480a0ad80dc07614 (fixed)

Vendor states this is fixed in 5b6b6fc491899d583eaa75344e094796ae9b530b (fixed)

Vendor states this is fixed in cb85ef5a227b3662b88f4d849a1aad43bfe7f5ae (fixed)

Vendor states this is fixed in e0d38bf47a72da2f02c9fa6f752cd66d977cd7f7 (fixed)

Vendor states this is fixed in 4.20 (unaffected)

Vendor states this is fixed in 6.12.94 (unaffected)

Vendor states this is fixed in 6.18.36 (unaffected)

Vendor states this is fixed in 6.6.160 (unaffected)

Vendor states this is fixed in 7.0.13 (unaffected)

Vendor states this is fixed in 7.1 (unaffected)