CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се от съседна мрежа, без особени условия, без вход и без действие от потребителя.
- Експлоатация: няма данни за експлоатация
- Атаката не може да се автоматизира
Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: make release_scratchbuffers idempotent brcmf_pcie_release_scratchbuffers() frees the shared.scratch and shared.ringupd DMA buffers with dma_free_coherent() but does not clear the pointers afterwards, unlike the sibling release_ringbuffers() which NULLs commonrings/flowrings/idxbuf on release. Both the bus_reset .reset callback (brcmf_pcie_reset) and brcmf_pcie_remove() call release_scratchbuffers. When reset teardown has run before removal, remove's own teardown would call dma_free_coherent() a second time on the already-freed DMA allocation. NULL the pointers after free, matching release_ringbuffers(), so a later release observes that the allocation has already been released. This patch makes repeated sequential release safe; the reset-work lifetime is handled separately by the following patch. This issue was found by an in-house static analysis tool.
Засегнати продукти
- Linux Linux: 4684997d9eea29380000e062755aa6d368d789a3 преди 81c58a206d1deee01f4c29236d4154c0872f2a38; 4684997d9eea29380000e062755aa6d368d789a3 преди 382ee00b2d1e31869ae576a60d3fbe7a2153512f; 4684997d9eea29380000e062755aa6d368d789a3 преди 739b686aecdb14a6065300ea53401f043e51fd22; 4684997d9eea29380000e062755aa6d368d789a3 преди b7d1d8cb1bdca56aecebacd2896615da0acc126a; 4684997d9eea29380000e062755aa6d368d789a3 преди 5a045c2f0fbf029873d2295178fa0785ade35af0; 4684997d9eea29380000e062755aa6d368d789a3 преди 044fca8f45ba9ab6ca526163155234cf88287ff5; 4684997d9eea29380000e062755aa6d368d789a3 преди 0ca80328df23f851c86866720d4977783c919ee6; 4684997d9eea29380000e062755aa6d368d789a3 преди 538c51e9d124cf656f2dd0c0394a8545efc7102d
- Linux Linux: 5.2; преди 5.2; 5.10.265 до 5.10.*; 5.15.216 до 5.15.*; 6.1.183 до 6.1.*; 6.6.148 до 6.6.*; 6.12.101 до 6.12.*; 6.18.42 до 6.18.*; 7.1.6 до 7.1.*; от 7.2 нататък
Вид слабост
История
- 10 август 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-68192
- https://nvd.nist.gov/vuln/detail/CVE-2026-68192
- https://git.kernel.org/stable/c/81c58a206d1deee01f4c29236d4154c0872f2a38
- https://git.kernel.org/stable/c/382ee00b2d1e31869ae576a60d3fbe7a2153512f
- https://git.kernel.org/stable/c/739b686aecdb14a6065300ea53401f043e51fd22
- https://git.kernel.org/stable/c/b7d1d8cb1bdca56aecebacd2896615da0acc126a
- https://git.kernel.org/stable/c/5a045c2f0fbf029873d2295178fa0785ade35af0
- https://git.kernel.org/stable/c/044fca8f45ba9ab6ca526163155234cf88287ff5
- https://git.kernel.org/stable/c/0ca80328df23f851c86866720d4977783c919ee6
- https://git.kernel.org/stable/c/538c51e9d124cf656f2dd0c0394a8545efc7102d