CVE-2026-89853

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

State: Published
Severity: Not scored
Published: Sep 16, 2026
Updated: Oct 19, 2026
Reserved: Sep 11, 2026

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	3a5a789494875376d1f8063ec5ecc6beafda2ce1 to before 423487f03e325b8665d20a2a3171fe012b1a4fa9Affected 73d3d3c66f108bc47922490f8500842530139975 to before 7bd308cd893e8cce023d03a40a2f0adccaff0175Affected 57c029cab0d908942e3ed9ff9fd0361144d01944 to before edc464a4fc96e2720d166e7cc7e7a6827b086760Affected 217230bc8796a922d5b15a9a94ec4414b2d2b3e3 to before 6003e79148eca73d7cafb076f5be47e234d543d0Affected 2cf3c3fe9a11aa168e80c966494c58548b9aed5d to before ef9b89f6c92274c3670403fd06130ca25f685050Affected 841df27d619ee1f5ca6473e15227b39d6136562d to before 8e7a26931b6111583cfeaf49c068f26524dc3af2Affected 841df27d619ee1f5ca6473e15227b39d6136562d to before 41ef7edde27ac87d55ffc703da44e78aa8c2e896Affected 841df27d619ee1f5ca6473e15227b39d6136562d to before 53298efcbbb0f0438366d45cb7ed7e6d93dd5531Affected a89872a61b914378591f16e428dd221c5e2059b2Affected 5.10.235 to before 5.10.270Affected 5.15.179 to before 5.15.221Affected 6.1.129 to before 6.1.188Affected 6.6.78 to before 6.6.157Affected 6.12.14 to before 6.12.110Affected 6.13.3 to before 6.14Affected
LinuxLinux	6.14Affected before 6.14Not affected 5.10.270 through 5.10.Not affected 5.15.221 through 5.15.Not affected 6.1.188 through 6.1.Not affected 6.6.157 through 6.6.Not affected 6.12.110 through 6.12.Not affected 6.18.51 through 6.18.Not affected 7.2.5 through 7.2.*Not affected 7.3 and laterNot affected

Product

Versions

LinuxLinux

3a5a789494875376d1f8063ec5ecc6beafda2ce1 to before 423487f03e325b8665d20a2a3171fe012b1a4fa9Affected
73d3d3c66f108bc47922490f8500842530139975 to before 7bd308cd893e8cce023d03a40a2f0adccaff0175Affected
57c029cab0d908942e3ed9ff9fd0361144d01944 to before edc464a4fc96e2720d166e7cc7e7a6827b086760Affected
217230bc8796a922d5b15a9a94ec4414b2d2b3e3 to before 6003e79148eca73d7cafb076f5be47e234d543d0Affected
2cf3c3fe9a11aa168e80c966494c58548b9aed5d to before ef9b89f6c92274c3670403fd06130ca25f685050Affected
841df27d619ee1f5ca6473e15227b39d6136562d to before 8e7a26931b6111583cfeaf49c068f26524dc3af2Affected
841df27d619ee1f5ca6473e15227b39d6136562d to before 41ef7edde27ac87d55ffc703da44e78aa8c2e896Affected
841df27d619ee1f5ca6473e15227b39d6136562d to before 53298efcbbb0f0438366d45cb7ed7e6d93dd5531Affected
a89872a61b914378591f16e428dd221c5e2059b2Affected
5.10.235 to before 5.10.270Affected
5.15.179 to before 5.15.221Affected
6.1.129 to before 6.1.188Affected
6.6.78 to before 6.6.157Affected
6.12.14 to before 6.12.110Affected
6.13.3 to before 6.14Affected

LinuxLinux

6.14Affected
before 6.14Not affected
5.10.270 through 5.10.*Not affected
5.15.221 through 5.15.*Not affected
6.1.188 through 6.1.*Not affected
6.6.157 through 6.6.*Not affected
6.12.110 through 6.12.*Not affected
6.18.51 through 6.18.*Not affected
7.2.5 through 7.2.*Not affected
7.3 and laterNot affected

References

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