{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-48695","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-05-03T14:55:07.145Z","datePublished":"2024-05-03T17:44:55.829Z","dateUpdated":"2026-08-05T08:51:48.371Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-05T08:51:48.371Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: mpt3sas: Fix use-after-free warning\n\nFix the following use-after-free warning which is observed during\ncontroller reset:\n\nrefcount_t: underflow; use-after-free.\nWARNING: CPU: 23 PID: 5399 at lib/refcount.c:28 refcount_warn_saturate+0xa6/0xf0"}],"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"},"scenarios":[{"lang":"en","value":"AV:L - The UAF is in the mpt3sas HBA driver's firmware-event cleanup during local controller reset (MPT3HARDRESET on /dev/mpt3ctl, SCSI EH host reset, or fault-watchdog reset), not in any network-facing packet path.\nAC:L - An attacker who can issue host resets controls both sides of the back-to-back reset sequence that leaves MPT3SAS_REMOVE_UNRESPONDING_DEVICES as current_event while _scsih_fw_event_cleanup_queue runs, so the double fw_event_work_put is reliably triggerable.\nPR:L - The driver does no capable() check on MPT3HARDRESET, and deployments routinely grant /dev/mpt3ctl or HBA /dev/sg* access to non-root storage groups; unprivileged sg I/O with short timeouts can also escalate into scsih_host_reset.\nUI:N - The attacker directly drives resets via ioctl or timed-out SCSI commands; no separate victim action is required.\nS:U - The use-after-free corrupts host-kernel slab state within the same privilege domain; there is no VM escape, IOMMU bypass, or sandbox boundary crossing.\nC:H - This is a use-after-free of a kmalloc'd fw_event_work (refcount underflow then free), which enables reclaim and disclosure of the object's contents.\nI:H - UAF of a heap object during reset cleanup enables heap spraying and arbitrary write / control-flow hijacking primitives in kernel context.\nA:H - The refcount underflow triggers a kernel WARNING/oops path and further use of the freed fw_event_work can panic or hang the host."}]}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/scsi/mpt3sas/mpt3sas_scsih.c"],"versions":[{"version":"146b16c8071f5f6c67895d15beeee1163f5107c4","lessThan":"b8fc9e91b931215110ba824d1a2983c5f60b6f82","status":"affected","versionType":"git"},{"version":"146b16c8071f5f6c67895d15beeee1163f5107c4","lessThan":"d4959d09b76eb7a4146f5133962b88d3bddb63d6","status":"affected","versionType":"git"},{"version":"146b16c8071f5f6c67895d15beeee1163f5107c4","lessThan":"82efb917eeb27454dc4c6fe26432fc8f6c75bc16","status":"affected","versionType":"git"},{"version":"146b16c8071f5f6c67895d15beeee1163f5107c4","lessThan":"5682c94644fde72f72bded6580c38189ffc856b5","status":"affected","versionType":"git"},{"version":"146b16c8071f5f6c67895d15beeee1163f5107c4","lessThan":"ea10a652ad2ae2cf3eced6f632a5c98f26727057","status":"affected","versionType":"git"},{"version":"146b16c8071f5f6c67895d15beeee1163f5107c4","lessThan":"6229fa494a5949be209bc73afbc5d0a749c2e3c7","status":"affected","versionType":"git"},{"version":"146b16c8071f5f6c67895d15beeee1163f5107c4","lessThan":"41acb064c4e013808bc7d5fc1b506fa449425b0b","status":"affected","versionType":"git"},{"version":"146b16c8071f5f6c67895d15beeee1163f5107c4","lessThan":"991df3dd5144f2e6b1c38b8d20ed3d4d21e20b34","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/scsi/mpt3sas/mpt3sas_scsih.c"],"versions":[{"version":"4.4","status":"affected"},{"version":"0","lessThan":"4.4","status":"unaffected","versionType":"semver"},{"version":"4.9.328","lessThanOrEqual":"4.9.*","status":"unaffected","versionType":"semver"},{"version":"4.14.293","lessThanOrEqual":"4.14.*","status":"unaffected","versionType":"semver"},{"version":"4.19.258","lessThanOrEqual":"4.19.*","status":"unaffected","versionType":"semver"},{"version":"5.4.213","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.143","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.68","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"5.19.9","lessThanOrEqual":"5.19.*","status":"unaffected","versionType":"semver"},{"version":"6.0","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":"4.4","versionEndExcluding":"4.9.328"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.4","versionEndExcluding":"4.14.293"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.4","versionEndExcluding":"4.19.258"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.4","versionEndExcluding":"5.4.213"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.4","versionEndExcluding":"5.10.143"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.4","versionEndExcluding":"5.15.68"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.4","versionEndExcluding":"5.19.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.4","versionEndExcluding":"6.0"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/b8fc9e91b931215110ba824d1a2983c5f60b6f82"},{"url":"https://git.kernel.org/stable/c/d4959d09b76eb7a4146f5133962b88d3bddb63d6"},{"url":"https://git.kernel.org/stable/c/82efb917eeb27454dc4c6fe26432fc8f6c75bc16"},{"url":"https://git.kernel.org/stable/c/5682c94644fde72f72bded6580c38189ffc856b5"},{"url":"https://git.kernel.org/stable/c/ea10a652ad2ae2cf3eced6f632a5c98f26727057"},{"url":"https://git.kernel.org/stable/c/6229fa494a5949be209bc73afbc5d0a749c2e3c7"},{"url":"https://git.kernel.org/stable/c/41acb064c4e013808bc7d5fc1b506fa449425b0b"},{"url":"https://git.kernel.org/stable/c/991df3dd5144f2e6b1c38b8d20ed3d4d21e20b34"}],"title":"scsi: mpt3sas: Fix use-after-free warning","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-06-17T17:39:45.670412Z","id":"CVE-2022-48695","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-11-21T21:27:24.160Z"}},{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-03T15:17:55.812Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/b8fc9e91b931215110ba824d1a2983c5f60b6f82","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/d4959d09b76eb7a4146f5133962b88d3bddb63d6","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/82efb917eeb27454dc4c6fe26432fc8f6c75bc16","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/5682c94644fde72f72bded6580c38189ffc856b5","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/ea10a652ad2ae2cf3eced6f632a5c98f26727057","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/6229fa494a5949be209bc73afbc5d0a749c2e3c7","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/41acb064c4e013808bc7d5fc1b506fa449425b0b","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/991df3dd5144f2e6b1c38b8d20ed3d4d21e20b34","tags":["x_transferred"]}]}]}}