wifi: libertas_tf: fix use-after-free in lbtf_free_adapter()
Summary
| CVE | CVE-2026-72070 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-08-15 06:21:16 UTC |
| Updated | 2026-08-15 06:21:16 UTC |
| Description | 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. |
Risk And Classification
EPSS: 0.002090000 probability, percentile 0.112960000 (date 2026-08-15)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected 06b16ae5319251c26377afcb401e46056d5673f4 4714e95f5d61cb9c5c7c6c4e68b618f37bc6ffcf git | Not specified |
| CNA | Linux | Linux | affected 06b16ae5319251c26377afcb401e46056d5673f4 066b59e84f90d270cc15f0370166155aca507630 git | Not specified |
| CNA | Linux | Linux | affected 06b16ae5319251c26377afcb401e46056d5673f4 fcff712d0e3d183843ec3916470ee6cc3455baad git | Not specified |
| CNA | Linux | Linux | affected 06b16ae5319251c26377afcb401e46056d5673f4 bcf7968cb97ce4312588042cf2712f04caff6d8f git | Not specified |
| CNA | Linux | Linux | affected 06b16ae5319251c26377afcb401e46056d5673f4 aa6dcd5c8dd9ba1d7d0f60093bcda41c0d6d438d git | Not specified |
| CNA | Linux | Linux | affected 2.6.28 | Not specified |
| CNA | Linux | Linux | unaffected 2.6.28 semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.148 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.101 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.40 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.1.5 7.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.2-rc4 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/4714e95f5d61cb9c5c7c6c4e68b618f37bc6ffcf | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/bcf7968cb97ce4312588042cf2712f04caff6d8f | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/aa6dcd5c8dd9ba1d7d0f60093bcda41c0d6d438d | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/066b59e84f90d270cc15f0370166155aca507630 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/fcff712d0e3d183843ec3916470ee6cc3455baad | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.