CVE-2026-98194

Summary

In the Linux kernel, the following vulnerability has been resolved:

wifi: libertas_tf: fix UAF in lbtf_free_adapter()

lbtf_free_adapter() calls lbtf_free_cmd_buffer() to free the command buffers before calling timer_delete_sync() to wait for the command timer callback. If the timer callback (command_timer_fn) is already running when lbtf_free_cmd_buffer() frees the command array, the callback dereferences priv->cur_cmd->cmdbuf which points to freed memory.

Swap the order so that timer_delete_sync() runs first, ensuring any in-flight callback has completed before the command buffers are freed.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux06b16ae5319251c26377afcb401e46056d5673f4 < 3fb3663260ec396f86b733aab9f81fac6669d2faaffected
LinuxLinux06b16ae5319251c26377afcb401e46056d5673f4 < f6c3fa0d17ca0c9e6033bb45f52e33b27a9a40e6affected
LinuxLinux06b16ae5319251c26377afcb401e46056d5673f4 < b4745d6063758c681d33affca9733bbd356b6ea1affected
LinuxLinux06b16ae5319251c26377afcb401e46056d5673f4 < 41b1a4d545ec348b7d5324b6d4f4c6a3e0326d46affected
LinuxLinux06b16ae5319251c26377afcb401e46056d5673f4 < 2b99bfc5a127ce8cd6a887d82815fc2e712f365baffected
LinuxLinux06b16ae5319251c26377afcb401e46056d5673f4 < e82536aad653e27c8ca7a8e0f6f816bc3f853ec3affected
LinuxLinux06b16ae5319251c26377afcb401e46056d5673f4 < 04c837d413dc11a91e0275b08b9e35a6c111175eaffected
LinuxLinux06b16ae5319251c26377afcb401e46056d5673f4 < bbb9a0ab96d44a64529aafc7a16de460a1712f6aaffected
LinuxLinux2.6.28affected
LinuxLinux0 < 2.6.28unaffected
LinuxLinux5.10.271 <= 5.10.*unaffected
LinuxLinux5.15.222 <= 5.15.*unaffected
LinuxLinux6.1.189 <= 6.1.*unaffected
LinuxLinux6.6.158 <= 6.6.*unaffected
LinuxLinux6.12.112 <= 6.12.*unaffected
LinuxLinux6.18.54 <= 6.18.*unaffected
LinuxLinux7.2.8 <= 7.2.*unaffected
LinuxLinux7.3-rc4 <= *unaffected

Weaknesses

References