{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2023-53810", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-12-08T23:58:35.276Z", "datePublished": "2025-12-09T00:01:08.062Z", "dateUpdated": "2025-12-09T00:01:08.062Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-12-09T00:01:08.062Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nblk-mq: release crypto keyslot before reporting I/O complete\n\nOnce all I/O using a blk_crypto_key has completed, filesystems can call\nblk_crypto_evict_key(). However, the block layer currently doesn't call\nblk_crypto_put_keyslot() until the request is being freed, which happens\nafter upper layers have been told (via bio_endio()) the I/O has\ncompleted. This causes a race condition where blk_crypto_evict_key()\ncan see 'slot_refs != 0' without there being an actual bug.\n\nThis makes __blk_crypto_evict_key() hit the\n'WARN_ON_ONCE(atomic_read(&slot->slot_refs) != 0)' and return without\ndoing anything, eventually causing a use-after-free in\nblk_crypto_reprogram_all_keys(). (This is a very rare bug and has only\nbeen seen when per-file keys are being used with fscrypt.)\n\nThere are two options to fix this: either release the keyslot before\nbio_endio() is called on the request's last bio, or make\n__blk_crypto_evict_key() ignore slot_refs. Let's go with the first\nsolution, since it preserves the ability to report bugs (via\nWARN_ON_ONCE) where a key is evicted while still in-use."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["block/blk-crypto-internal.h", "block/blk-crypto.c", "block/blk-merge.c", "block/blk-mq.c"], "versions": [{"version": "a892c8d52c02284076fbbacae6692aa5c5807d11", "lessThan": "874bdf43b4a7dc5463c31508f62b3e42eb237b08", "status": "affected", "versionType": "git"}, {"version": "a892c8d52c02284076fbbacae6692aa5c5807d11", "lessThan": "d206f79d9cd658665b37ce8134c6ec849ac7af0c", "status": "affected", "versionType": "git"}, {"version": "a892c8d52c02284076fbbacae6692aa5c5807d11", "lessThan": "7d206ec7a04e8545828191b6ea8b49d3ea61391f", "status": "affected", "versionType": "git"}, {"version": "a892c8d52c02284076fbbacae6692aa5c5807d11", "lessThan": "b278570e2c59d538216f8b656e97680188a8fba4", "status": "affected", "versionType": "git"}, {"version": "a892c8d52c02284076fbbacae6692aa5c5807d11", "lessThan": "92d5d233b9ff531cf9cc36ab4251779e07adb633", "status": "affected", "versionType": "git"}, {"version": "a892c8d52c02284076fbbacae6692aa5c5807d11", "lessThan": "9cd1e566676bbcb8a126acd921e4e194e6339603", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["block/blk-crypto-internal.h", "block/blk-crypto.c", "block/blk-merge.c", "block/blk-mq.c"], "versions": [{"version": "5.8", "status": "affected"}, {"version": "0", "lessThan": "5.8", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.180", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.111", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.28", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.2.15", "lessThanOrEqual": "6.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.3.2", "lessThanOrEqual": "6.3.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.4", "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": "5.8", "versionEndExcluding": "5.10.180"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "5.15.111"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "6.1.28"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "6.2.15"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "6.3.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "6.4"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/874bdf43b4a7dc5463c31508f62b3e42eb237b08"}, {"url": "https://git.kernel.org/stable/c/d206f79d9cd658665b37ce8134c6ec849ac7af0c"}, {"url": "https://git.kernel.org/stable/c/7d206ec7a04e8545828191b6ea8b49d3ea61391f"}, {"url": "https://git.kernel.org/stable/c/b278570e2c59d538216f8b656e97680188a8fba4"}, {"url": "https://git.kernel.org/stable/c/92d5d233b9ff531cf9cc36ab4251779e07adb633"}, {"url": "https://git.kernel.org/stable/c/9cd1e566676bbcb8a126acd921e4e194e6339603"}], "title": "blk-mq: release crypto keyslot before reporting I/O complete", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nblk-mq: release crypto keyslot before reporting I/O complete\n\nOnce all I/O using a blk_crypto_key has completed, filesystems can call\nblk_crypto_evict_key(). However, the block layer currently doesn't call\nblk_crypto_put_keyslot() until the request is being freed, which happens\nafter upper layers have been told (via bio_endio()) the I/O has\ncompleted. This causes a race condition where blk_crypto_evict_key()\ncan see 'slot_refs != 0' without there being an actual bug.\n\nThis makes __blk_crypto_evict_key() hit the\n'WARN_ON_ONCE(atomic_read(&slot->slot_refs) != 0)' and return without\ndoing anything, eventually causing a use-after-free in\nblk_crypto_reprogram_all_keys(). (This is a very rare bug and has only\nbeen seen when per-file keys are being used with fscrypt.)\n\nThere are two options to fix this: either release the keyslot before\nbio_endio() is called on the request's last bio, or make\n__blk_crypto_evict_key() ignore slot_refs. Let's go with the first\nsolution, since it preserves the ability to report bugs (via\nWARN_ON_ONCE) where a key is evicted while still in-use."}], "id": "CVE-2023-53810", "lastModified": "2025-12-09T18:37:13.640", "metrics": {}, "published": "2025-12-09T01:16:53.073", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7d206ec7a04e8545828191b6ea8b49d3ea61391f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/874bdf43b4a7dc5463c31508f62b3e42eb237b08"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/92d5d233b9ff531cf9cc36ab4251779e07adb633"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9cd1e566676bbcb8a126acd921e4e194e6339603"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b278570e2c59d538216f8b656e97680188a8fba4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d206f79d9cd658665b37ce8134c6ec849ac7af0c"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: blk-mq: release crypto keyslot before reporting I/O complete", "id": "2420280", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2420280"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nblk-mq: release crypto keyslot before reporting I/O complete\nOnce all I/O using a blk_crypto_key has completed, filesystems can call\nblk_crypto_evict_key(). However, the block layer currently doesn't call\nblk_crypto_put_keyslot() until the request is being freed, which happens\nafter upper layers have been told (via bio_endio()) the I/O has\ncompleted. This causes a race condition where blk_crypto_evict_key()\ncan see 'slot_refs != 0' without there being an actual bug.\nThis makes __blk_crypto_evict_key() hit the\n'WARN_ON_ONCE(atomic_read(&slot->slot_refs) != 0)' and return without\ndoing anything, eventually causing a use-after-free in\nblk_crypto_reprogram_all_keys(). (This is a very rare bug and has only\nbeen seen when per-file keys are being used with fscrypt.)\nThere are two options to fix this: either release the keyslot before\nbio_endio() is called on the request's last bio, or make\n__blk_crypto_evict_key() ignore slot_refs. Let's go with the first\nsolution, since it preserves the ability to report bugs (via\nWARN_ON_ONCE) where a key is evicted while still in-use."], "name": "CVE-2023-53810", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-12-09T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-53810\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-53810\nhttps://lore.kernel.org/linux-cve-announce/2025120944-CVE-2023-53810-e48e@gregkh/T"], "threat_severity": "Moderate"}

{}