CVE-2026-89853

scsi: qla2xxx: Fix FCE trace use-after-free during firmware dump

Published Sep 16, 2026 CVSS n/a EPSS < 1% KEV · Not listed

Description

In the Linux kernel, the following vulnerability has been resolved:

scsi: qla2xxx: Fix FCE trace use-after-free during firmware dump

qla2x00_free_fce_trace() freed and cleared ha->fce while holding only
fce_mutex. The firmware-dump consumers qla27xx_fwdt_entry_t264() and
qla25xx_copy_fce() read ha->fce (NULL check followed by a copy of the
buffer) under hardware_lock and never take fce_mutex. A debugfs FCE
disable could therefore free the DMA buffer between a dump's NULL check
and its copy, resulting in a use-after-free.

Unpublish ha->fce under hardware_lock, then release the lock and free
the DMA buffer (dma_free_coherent() may sleep). A concurrent dump either
completes its check and copy with the buffer still valid, or observes
ha->fce == NULL and skips it.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Linux

unaffected

Version	Status	Constraints
`3a5a789494875376d1f8063ec5ecc6beafda2ce1`	affected	< 423487f03e325b8665d20a2a3171fe012b1a4fa9
`73d3d3c66f108bc47922490f8500842530139975`	affected	< 7bd308cd893e8cce023d03a40a2f0adccaff0175
`57c029cab0d908942e3ed9ff9fd0361144d01944`	affected	< edc464a4fc96e2720d166e7cc7e7a6827b086760
`217230bc8796a922d5b15a9a94ec4414b2d2b3e3`	affected	< 6003e79148eca73d7cafb076f5be47e234d543d0
`2cf3c3fe9a11aa168e80c966494c58548b9aed5d`	affected	< ef9b89f6c92274c3670403fd06130ca25f685050
`841df27d619ee1f5ca6473e15227b39d6136562d`	affected	< 8e7a26931b6111583cfeaf49c068f26524dc3af2
`841df27d619ee1f5ca6473e15227b39d6136562d`	affected	< 41ef7edde27ac87d55ffc703da44e78aa8c2e896
`841df27d619ee1f5ca6473e15227b39d6136562d`	affected	< 53298efcbbb0f0438366d45cb7ed7e6d93dd5531
`a89872a61b914378591f16e428dd221c5e2059b2`	affected	—
`5.10.235`	affected	< 5.10.270
`5.15.179`	affected	< 5.15.221
`6.1.129`	affected	< 6.1.188
`6.6.78`	affected	< 6.6.157
`6.12.14`	affected	< 6.12.110
`6.13.3`	affected	< 6.14

Linux

affected

Version	Status	Constraints
`6.14`	affected	—
`0`	unaffected	< 6.14
`5.10.270`	unaffected	≤ 5.10.*
`5.15.221`	unaffected	≤ 5.15.*
`6.1.188`	unaffected	≤ 6.1.*
`6.6.157`	unaffected	≤ 6.6.*
`6.12.110`	unaffected	≤ 6.12.*
`6.18.51`	unaffected	≤ 6.18.*
`7.2.5`	unaffected	≤ 7.2.*
`7.3`	unaffected	≤ *

No data.

Vendor Product Versions

Linux

Linux Kernel

Version	Status	Scheme	Platform
`[3a5a789494875376d1f8063ec5ecc6beafda2ce1,423487f03e325b8665d20a2a3171fe012b1a4fa9)`	affected	code_commit	—
`[73d3d3c66f108bc47922490f8500842530139975,7bd308cd893e8cce023d03a40a2f0adccaff0175)`	affected	code_commit	—
`[57c029cab0d908942e3ed9ff9fd0361144d01944,edc464a4fc96e2720d166e7cc7e7a6827b086760)`	affected	code_commit	—
`[217230bc8796a922d5b15a9a94ec4414b2d2b3e3,6003e79148eca73d7cafb076f5be47e234d543d0)`	affected	code_commit	—
`[2cf3c3fe9a11aa168e80c966494c58548b9aed5d,ef9b89f6c92274c3670403fd06130ca25f685050)`	affected	code_commit	—
`[841df27d619ee1f5ca6473e15227b39d6136562d,8e7a26931b6111583cfeaf49c068f26524dc3af2)`	affected	code_commit	—
`[841df27d619ee1f5ca6473e15227b39d6136562d,41ef7edde27ac87d55ffc703da44e78aa8c2e896)`	affected	code_commit	—
`[841df27d619ee1f5ca6473e15227b39d6136562d,53298efcbbb0f0438366d45cb7ed7e6d93dd5531)`	affected	code_commit	—
`a89872a61b914378591f16e428dd221c5e2059b2`	affected	code_commit	—
`[5.10.235,5.10.270)`	affected	semver	—
`[5.15.179,5.15.221)`	affected	semver	—
`[6.1.129,6.1.188)`	affected	semver	—
`[6.6.78,6.6.157)`	affected	semver	—
`[6.12.14,6.12.110)`	affected	semver	—
`[6.13.3,6.14)`	affected	semver	—

Linux

Linux Kernel

Version	Status	Scheme	Platform
`6.14`	affected	generic	—
`[0,6.14)`	unaffected	generic	—
`[5.10.270,5.11.0)`	unaffected	semver	—
`[5.15.221,5.16.0)`	unaffected	semver	—
`[6.1.188,6.2.0)`	unaffected	semver	—
`[6.6.157,6.7.0)`	unaffected	semver	—
`[6.12.110,6.13.0)`	unaffected	semver	—
`[6.18.51,7.0.0)`	unaffected	semver	—
`[7.2.5,7.3.0)`	unaffected	semver	—
`[7.3-rc1,*]`	unaffected	generic	—

Remediation

No solution or workaround provided in the CVE record

Tracking

Advisories

Source	ID	Title
Debian DLA	DLA-4817-1	linux-6.12 security update
Debian DLA	DLA-4841-1	linux security update
Debian DSA	DSA-6528-1	linux security update
Ubuntu USN	USN-8961-1	Linux kernel vulnerabilities
Ubuntu USN	USN-9019-1	Linux kernel (Azure) vulnerabilities
Ubuntu USN	USN-9020-1	Linux kernel vulnerabilities
Ubuntu USN	USN-9022-1	Linux kernel vulnerabilities
Ubuntu USN	USN-9023-1	Linux kernel vulnerabilities
Ubuntu USN	USN-9024-1	Linux kernel vulnerabilities
Ubuntu USN	USN-9025-1	Linux kernel vulnerabilities
Ubuntu USN	USN-9026-1	Linux kernel (Azure) vulnerabilities
Ubuntu USN	USN-9029-1	Linux kernel (Raspberry Pi) vulnerabilities
Ubuntu USN	USN-9039-1	Linux kernel (Azure CVM) vulnerabilities
Ubuntu USN	USN-9040-1	Linux kernel (Low Latency NVIDIA) vulnerabilities
Ubuntu USN	USN-9066-1	Linux kernel (HWE) vulnerabilities
Ubuntu USN	USN-9091-1	Linux kernel (NVIDIA Tegra) vulnerabilities

Metrics

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.216% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://git.kernel.org/stable/c/41ef7edde27ac87d55ffc703da44e78aa8c2e896
https://git.kernel.org/stable/c/423487f03e325b8665d20a2a3171fe012b1a4fa9
https://git.kernel.org/stable/c/53298efcbbb0f0438366d45cb7ed7e6d93dd5531
https://git.kernel.org/stable/c/6003e79148eca73d7cafb076f5be47e234d543d0
https://git.kernel.org/stable/c/7bd308cd893e8cce023d03a40a2f0adccaff0175
https://git.kernel.org/stable/c/8e7a26931b6111583cfeaf49c068f26524dc3af2
https://git.kernel.org/stable/c/edc464a4fc96e2720d166e7cc7e7a6827b086760
https://git.kernel.org/stable/c/ef9b89f6c92274c3670403fd06130ca25f685050

History

Sep 18, 2026 9:30 AM Weaknesses updated View changes

Type	Values Removed	Values Added
Weaknesses		CWE-416

Sep 16, 2026 10:45 AM Description updated. Title updated. First appearance in the feed. Affected versions updated. Affected vendors updated. Added references View changes

Type	Values Removed	Values Added
Description		In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Fix FCE trace use-after-free during firmware dump qla2x00_free_fce_trace() freed and cleared ha->fce while holding only fce_mutex. The firmware-dump consumers qla27xx_fwdt_entry_t264() and qla25xx_copy_fce() read ha->fce (NULL check followed by a copy of the buffer) under hardware_lock and never take fce_mutex. A debugfs FCE disable could therefore free the DMA buffer between a dump's NULL check and its copy, resulting in a use-after-free. Unpublish ha->fce under hardware_lock, then release the lock and free the DMA buffer (dma_free_coherent() may sleep). A concurrent dump either completes its check and copy with the buffer still valid, or observes ha->fce == NULL and skips it.
Title		scsi: qla2xxx: Fix FCE trace use-after-free during firmware dump
First Time appeared		Linux Linux linux Kernel
CPEs		cpe:2.3:o:linux:linux_kernel::::::::
Vendors & Products		Linux Linux linux Kernel
References		https://git.kernel.org/stable/c/41ef7edde27ac87d55ffc703da44e78aa8c2e896 https://git.kernel.org/stable/c/423487f03e325b8665d20a2a3171fe012b1a4fa9 https://git.kernel.org/stable/c/53298efcbbb0f0438366d45cb7ed7e6d93dd5531 https://git.kernel.org/stable/c/6003e79148eca73d7cafb076f5be47e234d543d0 https://git.kernel.org/stable/c/7bd308cd893e8cce023d03a40a2f0adccaff0175 https://git.kernel.org/stable/c/8e7a26931b6111583cfeaf49c068f26524dc3af2 https://git.kernel.org/stable/c/edc464a4fc96e2720d166e7cc7e7a6827b086760 https://git.kernel.org/stable/c/ef9b89f6c92274c3670403fd06130ca25f685050