CVE-2026-98194

wifi: libertas_tf: fix UAF in lbtf_free_adapter()

State: Published
Severity: Not scored
Published: Oct 6, 2026
Updated: Oct 19, 2026
Reserved: Sep 25, 2026

Description

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	06b16ae5319251c26377afcb401e46056d5673f4 to before 3fb3663260ec396f86b733aab9f81fac6669d2faAffected 06b16ae5319251c26377afcb401e46056d5673f4 to before f6c3fa0d17ca0c9e6033bb45f52e33b27a9a40e6Affected 06b16ae5319251c26377afcb401e46056d5673f4 to before b4745d6063758c681d33affca9733bbd356b6ea1Affected 06b16ae5319251c26377afcb401e46056d5673f4 to before 41b1a4d545ec348b7d5324b6d4f4c6a3e0326d46Affected 06b16ae5319251c26377afcb401e46056d5673f4 to before 2b99bfc5a127ce8cd6a887d82815fc2e712f365bAffected 06b16ae5319251c26377afcb401e46056d5673f4 to before e82536aad653e27c8ca7a8e0f6f816bc3f853ec3Affected 06b16ae5319251c26377afcb401e46056d5673f4 to before 04c837d413dc11a91e0275b08b9e35a6c111175eAffected 06b16ae5319251c26377afcb401e46056d5673f4 to before bbb9a0ab96d44a64529aafc7a16de460a1712f6aAffected
LinuxLinux	2.6.28Affected before 2.6.28Not affected 5.10.271 through 5.10.Not affected 5.15.222 through 5.15.Not affected 6.1.189 through 6.1.Not affected 6.6.158 through 6.6.Not affected 6.12.112 through 6.12.Not affected 6.18.54 through 6.18.Not affected 7.2.8 through 7.2.*Not affected 7.3 and laterNot affected

Product

Versions

LinuxLinux

06b16ae5319251c26377afcb401e46056d5673f4 to before 3fb3663260ec396f86b733aab9f81fac6669d2faAffected
06b16ae5319251c26377afcb401e46056d5673f4 to before f6c3fa0d17ca0c9e6033bb45f52e33b27a9a40e6Affected
06b16ae5319251c26377afcb401e46056d5673f4 to before b4745d6063758c681d33affca9733bbd356b6ea1Affected
06b16ae5319251c26377afcb401e46056d5673f4 to before 41b1a4d545ec348b7d5324b6d4f4c6a3e0326d46Affected
06b16ae5319251c26377afcb401e46056d5673f4 to before 2b99bfc5a127ce8cd6a887d82815fc2e712f365bAffected
06b16ae5319251c26377afcb401e46056d5673f4 to before e82536aad653e27c8ca7a8e0f6f816bc3f853ec3Affected
06b16ae5319251c26377afcb401e46056d5673f4 to before 04c837d413dc11a91e0275b08b9e35a6c111175eAffected
06b16ae5319251c26377afcb401e46056d5673f4 to before bbb9a0ab96d44a64529aafc7a16de460a1712f6aAffected

LinuxLinux

2.6.28Affected
before 2.6.28Not affected
5.10.271 through 5.10.*Not affected
5.15.222 through 5.15.*Not affected
6.1.189 through 6.1.*Not affected
6.6.158 through 6.6.*Not affected
6.12.112 through 6.12.*Not affected
6.18.54 through 6.18.*Not affected
7.2.8 through 7.2.*Not affected
7.3 and laterNot affected

References

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