{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-46267", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.108Z", "datePublished": "2026-06-03T15:50:09.035Z", "dateUpdated": "2026-06-03T15:50:09.035Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-03T15:50:09.035Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: hci: shdlc: Stop timers and work before freeing context\n\nllc_shdlc_deinit() purges SHDLC skb queues and frees the llc_shdlc\nstructure while its timers and state machine work may still be active.\n\nTimer callbacks can schedule sm_work, and sm_work accesses SHDLC state\nand the skb queues. If teardown happens in parallel with a queued/running\nwork item, it can lead to UAF and other shutdown races.\n\nStop all SHDLC timers and cancel sm_work synchronously before purging the\nqueues and freeing the context.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/nfc/hci/llc_shdlc.c"], "versions": [{"version": "4a61cd6687fc6348d08724676d34e38160d6cf9b", "lessThan": "c60f41022eaad2a1dafecd3ae6f249a3bd6d4b6e", "status": "affected", "versionType": "git"}, {"version": "4a61cd6687fc6348d08724676d34e38160d6cf9b", "lessThan": "a24a676329d40481b2331bfa1418a679577dfd3a", "status": "affected", "versionType": "git"}, {"version": "4a61cd6687fc6348d08724676d34e38160d6cf9b", "lessThan": "77eef9f2eef045c3c37a3df82d3e661afb866b98", "status": "affected", "versionType": "git"}, {"version": "4a61cd6687fc6348d08724676d34e38160d6cf9b", "lessThan": "cf70cedce327833296ebe6043364d1e44b76a2ab", "status": "affected", "versionType": "git"}, {"version": "4a61cd6687fc6348d08724676d34e38160d6cf9b", "lessThan": "276820278e9717cc7d4bb32381892dd3ddf418d4", "status": "affected", "versionType": "git"}, {"version": "4a61cd6687fc6348d08724676d34e38160d6cf9b", "lessThan": "1cb97b1225450af3f7b728777929ba50c6a58ced", "status": "affected", "versionType": "git"}, {"version": "4a61cd6687fc6348d08724676d34e38160d6cf9b", "lessThan": "c9efde1e537baed7648a94022b43836a348a074f", "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/nfc/hci/llc_shdlc.c"], "versions": [{"version": "3.7", "status": "affected"}, {"version": "0", "lessThan": "3.7", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.202", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.165", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.128", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.75", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.14", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.4", "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": "3.7", "versionEndExcluding": "5.15.202"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.7", "versionEndExcluding": "6.1.165"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.7", "versionEndExcluding": "6.6.128"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.7", "versionEndExcluding": "6.12.75"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.7", "versionEndExcluding": "6.18.14"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.7", "versionEndExcluding": "6.19.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.7", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/c60f41022eaad2a1dafecd3ae6f249a3bd6d4b6e"}, {"url": "https://git.kernel.org/stable/c/a24a676329d40481b2331bfa1418a679577dfd3a"}, {"url": "https://git.kernel.org/stable/c/77eef9f2eef045c3c37a3df82d3e661afb866b98"}, {"url": "https://git.kernel.org/stable/c/cf70cedce327833296ebe6043364d1e44b76a2ab"}, {"url": "https://git.kernel.org/stable/c/276820278e9717cc7d4bb32381892dd3ddf418d4"}, {"url": "https://git.kernel.org/stable/c/1cb97b1225450af3f7b728777929ba50c6a58ced"}, {"url": "https://git.kernel.org/stable/c/c9efde1e537baed7648a94022b43836a348a074f"}], "title": "nfc: hci: shdlc: Stop timers and work before freeing context", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: hci: shdlc: Stop timers and work before freeing context\n\nllc_shdlc_deinit() purges SHDLC skb queues and frees the llc_shdlc\nstructure while its timers and state machine work may still be active.\n\nTimer callbacks can schedule sm_work, and sm_work accesses SHDLC state\nand the skb queues. If teardown happens in parallel with a queued/running\nwork item, it can lead to UAF and other shutdown races.\n\nStop all SHDLC timers and cancel sm_work synchronously before purging the\nqueues and freeing the context.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE."}], "id": "CVE-2026-46267", "lastModified": "2026-06-03T18:16:28.320", "metrics": {}, "published": "2026-06-03T18:16:28.320", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1cb97b1225450af3f7b728777929ba50c6a58ced"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/276820278e9717cc7d4bb32381892dd3ddf418d4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/77eef9f2eef045c3c37a3df82d3e661afb866b98"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a24a676329d40481b2331bfa1418a679577dfd3a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c60f41022eaad2a1dafecd3ae6f249a3bd6d4b6e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c9efde1e537baed7648a94022b43836a348a074f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/cf70cedce327833296ebe6043364d1e44b76a2ab"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}