CVE-2026-72070wifi: libertas_tf: fix use-after-free in lbtf_free_adapter()
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: wifi: libertas_tf: fix use-after-free in lbtf_free_adapter() lbtf_free_adapter() calls timer_delete(&priv->command_timer), which does not wait for a running command_timer_fn() callback. lbtf_free_adapter() runs on the teardown path right before ieee80211_free_hw() frees priv, both in lbtf_remove_card() and in the probe error path. command_timer is armed by mod_timer() in lbtf_cmd() whenever a firmware command is sent. command_timer_fn() dereferences priv. If a command times out as the device is removed, command_timer_fn() runs concurrently with teardown and dereferences priv after it has been freed. This is the same use-after-free that commit 03cc8f90d053 ("wifi: libertas: fix use-after-free in lbs_free_adapter()") fixed in the sibling libertas driver. The libertas_tf variant has the identical pattern and was left unchanged. Use timer_delete_sync() so any in-flight callback completes before priv is freed.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Aug 23, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 06b16ae5319251c26377afcb401e46056d5673f4 before bd75636681588c67006279abdb9a76a708b3ce29; 06b16ae5319251c26377afcb401e46056d5673f4 builds before 2fba1d3b2f031a2c68e566a6d45cc5b7a8d6683d; from 06b16ae5319251c26377afcb401e46056d5673f4 before 9392fd5de555272449d3d8c63410ea00f8ec853a; from 06b16ae5319251c26377afcb401e46056d5673f4 before 4714e95f5d61cb9c5c7c6c4e68b618f37bc6ffcf; from 06b16ae5319251c26377afcb401e46056d5673f4 before 066b59e84f90d270cc15f0370166155aca507630; from 06b16ae5319251c26377afcb401e46056d5673f4 before fcff712d0e3d183843ec3916470ee6cc3455baad; from 06b16ae5319251c26377afcb401e46056d5673f4 before bcf7968cb97ce4312588042cf2712f04caff6d8f; from 06b16ae5319251c26377afcb401e46056d5673f4 before aa6dcd5c8dd9ba1d7d0f60093bcda41c0d6d438d | CNA record |
References
- https://git.kernel.org/stable/c/bd75636681588c67006279abdb9a76a708b3ce29
- https://git.kernel.org/stable/c/2fba1d3b2f031a2c68e566a6d45cc5b7a8d6683d
- https://git.kernel.org/stable/c/9392fd5de555272449d3d8c63410ea00f8ec853a
- https://git.kernel.org/stable/c/4714e95f5d61cb9c5c7c6c4e68b618f37bc6ffcf
- https://git.kernel.org/stable/c/066b59e84f90d270cc15f0370166155aca507630
- https://git.kernel.org/stable/c/fcff712d0e3d183843ec3916470ee6cc3455baad
- https://git.kernel.org/stable/c/bcf7968cb97ce4312588042cf2712f04caff6d8f
- https://git.kernel.org/stable/c/aa6dcd5c8dd9ba1d7d0f60093bcda41c0d6d438d
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.