{"id":"CVE-2026-72070","state":"PUBLISHED","title":"wifi: libertas_tf: fix use-after-free in lbtf_free_adapter()","description":"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_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.","publishedAt":"2026-08-15T05:52:22.486Z","updatedAt":"2026-08-23T12:46:42.921Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"06b16ae5319251c26377afcb401e46056d5673f4","status":"affected","lessThan":"bd75636681588c67006279abdb9a76a708b3ce29","versionType":"git"},{"version":"06b16ae5319251c26377afcb401e46056d5673f4","status":"affected","lessThan":"2fba1d3b2f031a2c68e566a6d45cc5b7a8d6683d","versionType":"git"},{"version":"06b16ae5319251c26377afcb401e46056d5673f4","status":"affected","lessThan":"9392fd5de555272449d3d8c63410ea00f8ec853a","versionType":"git"},{"version":"06b16ae5319251c26377afcb401e46056d5673f4","status":"affected","lessThan":"4714e95f5d61cb9c5c7c6c4e68b618f37bc6ffcf","versionType":"git"},{"version":"06b16ae5319251c26377afcb401e46056d5673f4","status":"affected","lessThan":"066b59e84f90d270cc15f0370166155aca507630","versionType":"git"},{"version":"06b16ae5319251c26377afcb401e46056d5673f4","status":"affected","lessThan":"fcff712d0e3d183843ec3916470ee6cc3455baad","versionType":"git"},{"version":"06b16ae5319251c26377afcb401e46056d5673f4","status":"affected","lessThan":"bcf7968cb97ce4312588042cf2712f04caff6d8f","versionType":"git"},{"version":"06b16ae5319251c26377afcb401e46056d5673f4","status":"affected","lessThan":"aa6dcd5c8dd9ba1d7d0f60093bcda41c0d6d438d","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/marvell/libertas_tf/main.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.28","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.28","versionType":"semver"},{"version":"5.10.266","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.217","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.184","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.148","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.101","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.40","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/marvell/libertas_tf/main.c"]}],"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"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/72xxx/CVE-2026-72070.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-72070","state":"PUBLISHED","datePublished":"2026-08-15T05:52:22.486Z","dateUpdated":"2026-08-23T12:46:42.921Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-08-09T03:40:39.904Z"},"containers":{"cna":{"title":"wifi: libertas_tf: fix use-after-free in lbtf_free_adapter()","descriptions":[{"lang":"en","value":"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_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."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"06b16ae5319251c26377afcb401e46056d5673f4","status":"affected","lessThan":"bd75636681588c67006279abdb9a76a708b3ce29","versionType":"git"},{"version":"06b16ae5319251c26377afcb401e46056d5673f4","status":"affected","lessThan":"2fba1d3b2f031a2c68e566a6d45cc5b7a8d6683d","versionType":"git"},{"version":"06b16ae5319251c26377afcb401e46056d5673f4","status":"affected","lessThan":"9392fd5de555272449d3d8c63410ea00f8ec853a","versionType":"git"},{"version":"06b16ae5319251c26377afcb401e46056d5673f4","status":"affected","lessThan":"4714e95f5d61cb9c5c7c6c4e68b618f37bc6ffcf","versionType":"git"},{"version":"06b16ae5319251c26377afcb401e46056d5673f4","status":"affected","lessThan":"066b59e84f90d270cc15f0370166155aca507630","versionType":"git"},{"version":"06b16ae5319251c26377afcb401e46056d5673f4","status":"affected","lessThan":"fcff712d0e3d183843ec3916470ee6cc3455baad","versionType":"git"},{"version":"06b16ae5319251c26377afcb401e46056d5673f4","status":"affected","lessThan":"bcf7968cb97ce4312588042cf2712f04caff6d8f","versionType":"git"},{"version":"06b16ae5319251c26377afcb401e46056d5673f4","status":"affected","lessThan":"aa6dcd5c8dd9ba1d7d0f60093bcda41c0d6d438d","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/marvell/libertas_tf/main.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.28","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.28","versionType":"semver"},{"version":"5.10.266","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.217","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.184","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.148","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.101","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.40","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/marvell/libertas_tf/main.c"]}],"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"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-23T12:46:42.921Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.28","versionEndExcluding":"5.10.266"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.28","versionEndExcluding":"5.15.217"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.28","versionEndExcluding":"6.1.184"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.28","versionEndExcluding":"6.6.148"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.28","versionEndExcluding":"6.12.101"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.28","versionEndExcluding":"6.18.40"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.28","versionEndExcluding":"7.1.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.28","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}