{"id":"CVE-2026-72070","title":"wifi: libertas_tf: fix use-after-free in lbtf_free_adapter()","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: libertas_tf: fix use-after-free in lbtf_free_adapter()\n\nlbtf_free_adapter() calls timer_delete(&priv->command_timer), which does\nnot wait for a running command_ti…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 06b16ae5319251c26377afcb401e46056d5673f4 < bd75636681588c67006279abdb9a76a708b3ce29","Linux >= 06b16ae5319251c26377afcb401e46056d5673f4 < 2fba1d3b2f031a2c68e566a6d45cc5b7a8d6683d","Linux >= 06b16ae5319251c26377afcb401e46056d5673f4 < 9392fd5de555272449d3d8c63410ea00f8ec853a","Linux >= 06b16ae5319251c26377afcb401e46056d5673f4 < 4714e95f5d61cb9c5c7c6c4e68b618f37bc6ffcf","Linux >= 06b16ae5319251c26377afcb401e46056d5673f4 < 066b59e84f90d270cc15f0370166155aca507630","Linux >= 06b16ae5319251c26377afcb401e46056d5673f4 < fcff712d0e3d183843ec3916470ee6cc3455baad","Linux >= 06b16ae5319251c26377afcb401e46056d5673f4 < bcf7968cb97ce4312588042cf2712f04caff6d8f","Linux >= 06b16ae5319251c26377afcb401e46056d5673f4 < aa6dcd5c8dd9ba1d7d0f60093bcda41c0d6d438d","Linux 2.6.28"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-06T16:51:09.396547Z"},"published":"2026-08-15","updated":"2026-11-06","sourceUpdated":"2026-11-06T16:55:19.417Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-72070","references":[{"url":"https://git.kernel.org/stable/c/bd75636681588c67006279abdb9a76a708b3ce29"},{"url":"https://git.kernel.org/stable/c/2fba1d3b2f031a2c68e566a6d45cc5b7a8d6683d"},{"url":"https://git.kernel.org/stable/c/9392fd5de555272449d3d8c63410ea00f8ec853a"},{"url":"https://git.kernel.org/stable/c/4714e95f5d61cb9c5c7c6c4e68b618f37bc6ffcf"},{"url":"https://git.kernel.org/stable/c/066b59e84f90d270cc15f0370166155aca507630"},{"url":"https://git.kernel.org/stable/c/fcff712d0e3d183843ec3916470ee6cc3455baad"},{"url":"https://git.kernel.org/stable/c/bcf7968cb97ce4312588042cf2712f04caff6d8f"},{"url":"https://git.kernel.org/stable/c/aa6dcd5c8dd9ba1d7d0f60093bcda41c0d6d438d"}],"tags":["cve.org"],"epss":0.0022,"epssPercentile":0.12601,"ingestedAt":"2026-11-06T18:00:12.598Z","slug":"CVE-2026-72070","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nwifi: libertas_tf: fix use-after-free in lbtf_free_adapter()\n\nlbtf_free_adapter() calls timer_delete(&priv->command_timer), which does\nnot wait for a running command_timer_fn() callback. lbtf_free_adapter()\nruns on the teardown path right before ieee80211_free_hw() frees priv,\nboth in lbtf_remove_card() and in the probe error path. command_timer is\narmed by mod_timer() in lbtf_cmd() whenever a firmware command is sent.\ncommand_timer_fn() dereferences priv. If a command times out as the\ndevice is removed, command_timer_fn() runs concurrently with teardown and\ndereferences priv after it has been freed.\n\nThis is the same use-after-free that commit 03cc8f90d053 (\"wifi: libertas:\nfix use-after-free in lbs_free_adapter()\") fixed in the sibling libertas\ndriver. The libertas_tf variant has the identical pattern and was left\nunchanged. Use timer_delete_sync() so any in-flight callback completes\nbefore priv is freed.\n\n## Affected\n\n- `Linux >= 06b16ae5319251c26377afcb401e46056d5673f4 < bd75636681588c67006279abdb9a76a708b3ce29`\n- `Linux >= 06b16ae5319251c26377afcb401e46056d5673f4 < 2fba1d3b2f031a2c68e566a6d45cc5b7a8d6683d`\n- `Linux >= 06b16ae5319251c26377afcb401e46056d5673f4 < 9392fd5de555272449d3d8c63410ea00f8ec853a`\n- `Linux >= 06b16ae5319251c26377afcb401e46056d5673f4 < 4714e95f5d61cb9c5c7c6c4e68b618f37bc6ffcf`\n- `Linux >= 06b16ae5319251c26377afcb401e46056d5673f4 < 066b59e84f90d270cc15f0370166155aca507630`\n- `Linux >= 06b16ae5319251c26377afcb401e46056d5673f4 < fcff712d0e3d183843ec3916470ee6cc3455baad`\n- `Linux >= 06b16ae5319251c26377afcb401e46056d5673f4 < bcf7968cb97ce4312588042cf2712f04caff6d8f`\n- `Linux >= 06b16ae5319251c26377afcb401e46056d5673f4 < aa6dcd5c8dd9ba1d7d0f60093bcda41c0d6d438d`\n- `Linux 2.6.28`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}