{"id":"CVE-2026-98160","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8723bs: fix mismatched free of HalData in rtw_sdio_if1_init()\n\npadapter->HalData is allocated via vzalloc(), but incorrectly freed\nusing kfree() in the rtw_…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8723bs: fix mismatched free of HalData in rtw_sdio_if1_init()\n\npadapter->HalData is allocated via vzalloc(), but incorrectly freed\nusing kfree() in the rtw_…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 554c0a3abf216c991c5ebddcdb2c08689ecd290b < ff6d1ba247b5c62bdb678f1069abc86ad88a1402","Linux >= 554c0a3abf216c991c5ebddcdb2c08689ecd290b < d6158333d630a1b21d8914feaf77a6f5deb185d9","Linux >= 554c0a3abf216c991c5ebddcdb2c08689ecd290b < 6c017ab2b0e1b60b5be94636c94720347213d78b","Linux >= 554c0a3abf216c991c5ebddcdb2c08689ecd290b < 4520d673d49dabfd42c008a33889251025f7d6d5","Linux >= 554c0a3abf216c991c5ebddcdb2c08689ecd290b < 423574feaed192063ef0cd0813fb85425f39e539","Linux >= 554c0a3abf216c991c5ebddcdb2c08689ecd290b < 737c928ff5092d7e55128a232c231248fc993777","Linux >= 554c0a3abf216c991c5ebddcdb2c08689ecd290b < 911190f0b9511c3c81f2f2484414c1ae26f636b3","Linux >= 554c0a3abf216c991c5ebddcdb2c08689ecd290b < 264676418b726baca7be49171e306b6aa05cceb0","Linux 4.12"],"published":"2026-09-25","updated":"2026-09-25","sourceUpdated":"2026-09-25T14:17:27.627","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-98160","references":[{"url":"https://git.kernel.org/stable/c/264676418b726baca7be49171e306b6aa05cceb0","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/423574feaed192063ef0cd0813fb85425f39e539","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/4520d673d49dabfd42c008a33889251025f7d6d5","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6c017ab2b0e1b60b5be94636c94720347213d78b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/737c928ff5092d7e55128a232c231248fc993777","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/911190f0b9511c3c81f2f2484414c1ae26f636b3","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d6158333d630a1b21d8914feaf77a6f5deb185d9","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ff6d1ba247b5c62bdb678f1069abc86ad88a1402","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-25T14:09:46.375Z","slug":"CVE-2026-98160","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8723bs: fix mismatched free of HalData in rtw_sdio_if1_init()\n\npadapter->HalData is allocated via vzalloc(), but incorrectly freed\nusing kfree() in the rtw_sdio_if1_init() error path. Using kfree() to\nrelease this vmalloc-backed buffer can lead to memory corruption.\n\nUse rtw_hal_data_deinit() to pair the free correctly and free\nHalData with vfree().\n\nThe bug was first flagged by an experimental static analysis tool we\nare developing for kernel memory-management bugs. Manual inspection\nconfirms that the issue is still present in current mainline.\n\nAn x86_64 allyesconfig build showed no new warnings. As we do not have\nsuitable RTL8723BS SDIO hardware to test with, no runtime testing was\nable to be performed.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}