CVE-2026-89853scsi: qla2xxx: Fix FCE trace use-after-free during firmware dump
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Sep 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 3a5a789494875376d1f8063ec5ecc6beafda2ce1 before 423487f03e325b8665d20a2a3171fe012b1a4fa9; 73d3d3c66f108bc47922490f8500842530139975 builds before 7bd308cd893e8cce023d03a40a2f0adccaff0175; from 57c029cab0d908942e3ed9ff9fd0361144d01944 before edc464a4fc96e2720d166e7cc7e7a6827b086760; 217230bc8796a922d5b15a9a94ec4414b2d2b3e3 builds before 6003e79148eca73d7cafb076f5be47e234d543d0; from 2cf3c3fe9a11aa168e80c966494c58548b9aed5d before ef9b89f6c92274c3670403fd06130ca25f685050; 841df27d619ee1f5ca6473e15227b39d6136562d builds before 8e7a26931b6111583cfeaf49c068f26524dc3af2; 841df27d619ee1f5ca6473e15227b39d6136562d builds before 41ef7edde27ac87d55ffc703da44e78aa8c2e896; from 841df27d619ee1f5ca6473e15227b39d6136562d before 53298efcbbb0f0438366d45cb7ed7e6d93dd5531; and 7 more ranges | CNA record |
References
- https://git.kernel.org/stable/c/423487f03e325b8665d20a2a3171fe012b1a4fa9
- https://git.kernel.org/stable/c/7bd308cd893e8cce023d03a40a2f0adccaff0175
- https://git.kernel.org/stable/c/edc464a4fc96e2720d166e7cc7e7a6827b086760
- https://git.kernel.org/stable/c/6003e79148eca73d7cafb076f5be47e234d543d0
- https://git.kernel.org/stable/c/ef9b89f6c92274c3670403fd06130ca25f685050
- https://git.kernel.org/stable/c/8e7a26931b6111583cfeaf49c068f26524dc3af2
- https://git.kernel.org/stable/c/41ef7edde27ac87d55ffc703da44e78aa8c2e896
- https://git.kernel.org/stable/c/53298efcbbb0f0438366d45cb7ed7e6d93dd5531
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.