CVE-2026-72070
wifi: libertas_tf: fix use-after-free in lbtf_free_adapter()
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.
INFO
Published Date :
Aug. 15, 2026, 6:21 a.m.
Last Modified :
Aug. 17, 2026, 6:18 a.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
- Use timer_delete_sync instead of timer_delete.
- Ensure firmware command timers are synchronized.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-72070.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-72070 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-72070
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-72070 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-72070 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 17, 2026
Action Type Old Value New Value Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '06b16ae5319251c26377afcb401e46056d5673f4', 'lessThan': '4714e95f5d61cb9c5c7c6c4e68b618f37bc6ffcf', 'versionType': 'git'}, {'status': 'affected', 'version': '06b16ae5319251c26377afcb401e46056d5673f4', 'lessThan': '066b59e84f90d270cc15f0370166155aca507630', 'versionType': 'git'}, {'status': 'affected', 'version': '06b16ae5319251c26377afcb401e46056d5673f4', 'lessThan': 'fcff712d0e3d183843ec3916470ee6cc3455baad', 'versionType': 'git'}, {'status': 'affected', 'version': '06b16ae5319251c26377afcb401e46056d5673f4', 'lessThan': 'bcf7968cb97ce4312588042cf2712f04caff6d8f', 'versionType': 'git'}, {'status': 'affected', 'version': '06b16ae5319251c26377afcb401e46056d5673f4', 'lessThan': 'aa6dcd5c8dd9ba1d7d0f60093bcda41c0d6d438d', 'versionType': 'git'}], 'programFiles': ['drivers/net/wireless/marvell/libertas_tf/main.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '2.6.28'}, {'status': 'unaffected', 'version': '0', 'lessThan': '2.6.28', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.148', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc4', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/net/wireless/marvell/libertas_tf/main.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '06b16ae5319251c26377afcb401e46056d5673f4', 'lessThan': '4714e95f5d61cb9c5c7c6c4e68b618f37bc6ffcf', 'versionType': 'git'}, {'status': 'affected', 'version': '06b16ae5319251c26377afcb401e46056d5673f4', 'lessThan': '066b59e84f90d270cc15f0370166155aca507630', 'versionType': 'git'}, {'status': 'affected', 'version': '06b16ae5319251c26377afcb401e46056d5673f4', 'lessThan': 'fcff712d0e3d183843ec3916470ee6cc3455baad', 'versionType': 'git'}, {'status': 'affected', 'version': '06b16ae5319251c26377afcb401e46056d5673f4', 'lessThan': 'bcf7968cb97ce4312588042cf2712f04caff6d8f', 'versionType': 'git'}, {'status': 'affected', 'version': '06b16ae5319251c26377afcb401e46056d5673f4', 'lessThan': 'aa6dcd5c8dd9ba1d7d0f60093bcda41c0d6d438d', 'versionType': 'git'}], 'programFiles': ['drivers/net/wireless/marvell/libertas_tf/main.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '2.6.28'}, {'status': 'unaffected', 'version': '0', 'lessThan': '2.6.28', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.148', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/net/wireless/marvell/libertas_tf/main.c'], 'defaultStatus': 'affected'}] -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 15, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '06b16ae5319251c26377afcb401e46056d5673f4', 'lessThan': '4714e95f5d61cb9c5c7c6c4e68b618f37bc6ffcf', 'versionType': 'git'}, {'status': 'affected', 'version': '06b16ae5319251c26377afcb401e46056d5673f4', 'lessThan': '066b59e84f90d270cc15f0370166155aca507630', 'versionType': 'git'}, {'status': 'affected', 'version': '06b16ae5319251c26377afcb401e46056d5673f4', 'lessThan': 'fcff712d0e3d183843ec3916470ee6cc3455baad', 'versionType': 'git'}, {'status': 'affected', 'version': '06b16ae5319251c26377afcb401e46056d5673f4', 'lessThan': 'bcf7968cb97ce4312588042cf2712f04caff6d8f', 'versionType': 'git'}, {'status': 'affected', 'version': '06b16ae5319251c26377afcb401e46056d5673f4', 'lessThan': 'aa6dcd5c8dd9ba1d7d0f60093bcda41c0d6d438d', 'versionType': 'git'}], 'programFiles': ['drivers/net/wireless/marvell/libertas_tf/main.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '2.6.28'}, {'status': 'unaffected', 'version': '0', 'lessThan': '2.6.28', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.148', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc4', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/net/wireless/marvell/libertas_tf/main.c'], 'defaultStatus': 'affected'}] Added 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. Added Reference https://git.kernel.org/stable/c/066b59e84f90d270cc15f0370166155aca507630 Added Reference https://git.kernel.org/stable/c/4714e95f5d61cb9c5c7c6c4e68b618f37bc6ffcf Added Reference https://git.kernel.org/stable/c/aa6dcd5c8dd9ba1d7d0f60093bcda41c0d6d438d Added Reference https://git.kernel.org/stable/c/bcf7968cb97ce4312588042cf2712f04caff6d8f Added Reference https://git.kernel.org/stable/c/fcff712d0e3d183843ec3916470ee6cc3455baad