{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-23336","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-01-13T15:37:45.997Z","datePublished":"2026-03-25T10:27:26.061Z","dateUpdated":"2026-05-11T22:04:52.288Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T22:04:52.288Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: cancel rfkill_block work in wiphy_unregister()\n\nThere is a use-after-free error in cfg80211_shutdown_all_interfaces found\nby syzkaller:\n\nBUG: KASAN: use-after-free in cfg80211_shutdown_all_interfaces+0x213/0x220\nRead of size 8 at addr ffff888112a78d98 by task kworker/0:5/5326\nCPU: 0 UID: 0 PID: 5326 Comm: kworker/0:5 Not tainted 6.19.0-rc2 #2 PREEMPT(voluntary)\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014\nWorkqueue: events cfg80211_rfkill_block_work\nCall Trace:\n <TASK>\n dump_stack_lvl+0x116/0x1f0\n print_report+0xcd/0x630\n kasan_report+0xe0/0x110\n cfg80211_shutdown_all_interfaces+0x213/0x220\n cfg80211_rfkill_block_work+0x1e/0x30\n process_one_work+0x9cf/0x1b70\n worker_thread+0x6c8/0xf10\n kthread+0x3c5/0x780\n ret_from_fork+0x56d/0x700\n ret_from_fork_asm+0x1a/0x30\n </TASK>\n\nThe problem arises due to the rfkill_block work is not cancelled when wiphy\nis being unregistered. In order to fix the issue cancel the corresponding\nwork in wiphy_unregister().\n\nFound by Linux Verification Center (linuxtesting.org) with Syzkaller."}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH"}}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/wireless/core.c"],"versions":[{"version":"1f87f7d3a3b42b20f34cb03f0fd1a41c3d0e27f3","lessThan":"82a35356b5c1f75fe6a8a561db44e8d0e49da8f9","status":"affected","versionType":"git"},{"version":"1f87f7d3a3b42b20f34cb03f0fd1a41c3d0e27f3","lessThan":"b2e9626a9d16b9bbbd06498c9e73c93be354dc7a","status":"affected","versionType":"git"},{"version":"1f87f7d3a3b42b20f34cb03f0fd1a41c3d0e27f3","lessThan":"eeea8da43ab86ac0a6b9cec225eec91564346940","status":"affected","versionType":"git"},{"version":"1f87f7d3a3b42b20f34cb03f0fd1a41c3d0e27f3","lessThan":"fa18639deab4a3662d543200c5bfc29bf4e23173","status":"affected","versionType":"git"},{"version":"1f87f7d3a3b42b20f34cb03f0fd1a41c3d0e27f3","lessThan":"57e39fe8da573435fa35975f414f4dc17d9f8449","status":"affected","versionType":"git"},{"version":"1f87f7d3a3b42b20f34cb03f0fd1a41c3d0e27f3","lessThan":"584279ad9ff1e8e7c5494b9fce286201f7d1f9e2","status":"affected","versionType":"git"},{"version":"1f87f7d3a3b42b20f34cb03f0fd1a41c3d0e27f3","lessThan":"cd2f52944c7b95dcdfe0d87f385a2d96458a3ae5","status":"affected","versionType":"git"},{"version":"1f87f7d3a3b42b20f34cb03f0fd1a41c3d0e27f3","lessThan":"767d23ade706d5fa51c36168e92a9c5533c351a1","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/wireless/core.c"],"versions":[{"version":"2.6.31","status":"affected"},{"version":"0","lessThan":"2.6.31","status":"unaffected","versionType":"semver"},{"version":"5.10.253","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.203","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.167","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.130","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.77","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.17","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"6.19.7","lessThanOrEqual":"6.19.*","status":"unaffected","versionType":"semver"},{"version":"7.0","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.31","versionEndExcluding":"5.10.253"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.31","versionEndExcluding":"5.15.203"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.31","versionEndExcluding":"6.1.167"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.31","versionEndExcluding":"6.6.130"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.31","versionEndExcluding":"6.12.77"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.31","versionEndExcluding":"6.18.17"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.31","versionEndExcluding":"6.19.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.31","versionEndExcluding":"7.0"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/82a35356b5c1f75fe6a8a561db44e8d0e49da8f9"},{"url":"https://git.kernel.org/stable/c/b2e9626a9d16b9bbbd06498c9e73c93be354dc7a"},{"url":"https://git.kernel.org/stable/c/eeea8da43ab86ac0a6b9cec225eec91564346940"},{"url":"https://git.kernel.org/stable/c/fa18639deab4a3662d543200c5bfc29bf4e23173"},{"url":"https://git.kernel.org/stable/c/57e39fe8da573435fa35975f414f4dc17d9f8449"},{"url":"https://git.kernel.org/stable/c/584279ad9ff1e8e7c5494b9fce286201f7d1f9e2"},{"url":"https://git.kernel.org/stable/c/cd2f52944c7b95dcdfe0d87f385a2d96458a3ae5"},{"url":"https://git.kernel.org/stable/c/767d23ade706d5fa51c36168e92a9c5533c351a1"}],"title":"wifi: cfg80211: cancel rfkill_block work in wiphy_unregister()","x_generator":{"engine":"bippy-1.2.0"}}}}