CVE-2026-98160
Błąd w jądrze Linuxa w rtw_sdio_if1_init prowadzi do uszkodzenia pamięci przez niewłaściwe zwolnienie HalData.
In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix mismatched free of HalData in rtw_sdio_if1_init() padapter->HalData is allocated via vzalloc(), but incorrectly freed using kfree() in the rtw_sdio_if1_init() error path. Using kfree() to release this vmalloc-backed buffer can lead to memory corruption. Use rtw_hal_data_deinit() to pair the free correctly and free HalData with vfree(). The bug was first flagged by an experimental static analysis tool we are developing for kernel memory-management bugs. Manual inspection confirms that the issue is still present in current mainline. An x86_64 allyesconfig build showed no new warnings. As we do not have suitable RTL8723BS SDIO hardware to test with, no runtime testing was able to be performed.
| Źródło | Wartość |
|---|---|
| NVD – CVSS | 5.5 |
| CISA KEV (aktywnie wykorzystywane) | Nie |
| FIRST EPSS (prawdopodobieństwo exploita) | 0.1% |
| Opublikowano (NVD) | 2026-09-25 14:17:27 UTC |
| Ostatnia modyfikacja (NVD) | 2026-10-02 20:34:50 UTC |
- https://git.kernel.org/stable/c/264676418b726baca7be49171e306b6aa05cceb0 (416baaa9-dc9f-4396-8d5f-8c081fb06d67) [Patch]
- https://git.kernel.org/stable/c/423574feaed192063ef0cd0813fb85425f39e539 (416baaa9-dc9f-4396-8d5f-8c081fb06d67) [Patch]
- https://git.kernel.org/stable/c/4520d673d49dabfd42c008a33889251025f7d6d5 (416baaa9-dc9f-4396-8d5f-8c081fb06d67) [Patch]
- https://git.kernel.org/stable/c/6c017ab2b0e1b60b5be94636c94720347213d78b (416baaa9-dc9f-4396-8d5f-8c081fb06d67) [Patch]
- https://git.kernel.org/stable/c/737c928ff5092d7e55128a232c231248fc993777 (416baaa9-dc9f-4396-8d5f-8c081fb06d67) [Patch]
- https://git.kernel.org/stable/c/911190f0b9511c3c81f2f2484414c1ae26f636b3 (416baaa9-dc9f-4396-8d5f-8c081fb06d67) [Patch]
- https://git.kernel.org/stable/c/d6158333d630a1b21d8914feaf77a6f5deb185d9 (416baaa9-dc9f-4396-8d5f-8c081fb06d67) [Patch]
- https://git.kernel.org/stable/c/ff6d1ba247b5c62bdb678f1069abc86ad88a1402 (416baaa9-dc9f-4396-8d5f-8c081fb06d67) [Patch]