CVE-2026-89853
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.
How to fix
- Linux Linux423487f03e325b8665d20a2a3171fe012b1a4fa9, 7bd308cd893e8cce023d03a40a2f0adccaff0175, edc464a4fc96e2720d166e7cc7e7a6827b086760, 6003e79148eca73d7cafb076f5be47e234d543d0, ef9b89f6c92274c3670403fd06130ca25f685050, 8e7a26931b6111583cfeaf49c068f26524dc3af2, 41ef7edde27ac87d55ffc703da44e78aa8c2e896, 53298efcbbb0f0438366d45cb7ed7e6d93dd5531, 5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.110, 6.14 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 3a5a789494875376d1f8063ec5ecc6beafda2ce1 ≤ v < 423487f03e325b8665d20a2a3171fe012b1a4fa9, 73d3d3c66f108bc47922490f8500842530139975 ≤ v < 7bd308cd893e8cce023d03a40a2f0adccaff0175, 57c029cab0d908942e3ed9ff9fd0361144d01944 ≤ v < edc464a4fc96e2720d166e7cc7e7a6827b086760, 217230bc8796a922d5b15a9a94ec4414b2d2b3e3 ≤ v < 6003e79148eca73d7cafb076f5be47e234d543d0, 2cf3c3fe9a11aa168e80c966494c58548b9aed5d ≤ v < ef9b89f6c92274c3670403fd06130ca25f685050, 841df27d619ee1f5ca6473e15227b39d6136562d ≤ v < 8e7a26931b6111583cfeaf49c068f26524dc3af2, 841df27d619ee1f5ca6473e15227b39d6136562d ≤ v < 41ef7edde27ac87d55ffc703da44e78aa8c2e896, 841df27d619ee1f5ca6473e15227b39d6136562d ≤ v < 53298efcbbb0f0438366d45cb7ed7e6d93dd5531, a89872a61b914378591f16e428dd221c5e2059b2, 5.10.235 ≤ v < 5.10.270, 5.15.179 ≤ v < 5.15.221, 6.1.129 ≤ v < 6.1.188, 6.6.78 ≤ v < 6.6.157, 6.12.14 ≤ v < 6.12.110, 6.13.3 ≤ v < 6.14, 6.14 | 423487f03e325b8665d20a2a3171fe012b1a4fa9, 7bd308cd893e8cce023d03a40a2f0adccaff0175, edc464a4fc96e2720d166e7cc7e7a6827b086760, 6003e79148eca73d7cafb076f5be47e234d543d0, ef9b89f6c92274c3670403fd06130ca25f685050, 8e7a26931b6111583cfeaf49c068f26524dc3af2, 41ef7edde27ac87d55ffc703da44e78aa8c2e896, 53298efcbbb0f0438366d45cb7ed7e6d93dd5531, 5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.110, 6.14 |
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