CVE-2026-89852

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-89852", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-11T19:38:34.770Z", "datePublished": "2026-09-16T10:31:26.012Z", "dateUpdated": "2026-10-19T08:53:45.110Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T08:53:45.110Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Zero mailbox struct in qla2x00_get_firmware_state()\n\nThe mbx_cmd_t is allocated on the stack but left uninitialized.\nqla2x00_mailbox_command() has several early-return paths (PCI permanent\nfailure, device failed, EEH busy, ISP abort pending, mailbox access\ntimeout, purge mbox) that return without writing the input mailbox\nregisters back into mcp->mb[]. qla2x00_get_firmware_state() then\nunconditionally copies mcp->mb[1..6] (and mb[12]) into the caller's\nstates[] array regardless of the return value.\n\nOn such a failure the copied values are uninitialized kernel stack\nmemory, which is then exposed to userspace via the fw_state and\nmpi_fw_state sysfs handlers. Zero the mailbox struct so a failed query\nyields deterministic zeroed state instead of leaking stack contents."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/scsi/qla2xxx/qla_mbx.c"], "versions": [{"version": "4d4df1932b6b116aecc81039066fec27f2050762", "lessThan": "f8fc5cc6b3284506c6ab83c822c48133377668bb", "status": "affected", "versionType": "git"}, {"version": "4d4df1932b6b116aecc81039066fec27f2050762", "lessThan": "f29695b1138ae2539c5cd6cdaba9b1b072aaa81a", "status": "affected", "versionType": "git"}, {"version": "4d4df1932b6b116aecc81039066fec27f2050762", "lessThan": "13d645a2cdb224d27205368f3e3c68bb160daf97", "status": "affected", "versionType": "git"}, {"version": "4d4df1932b6b116aecc81039066fec27f2050762", "lessThan": "2f847f06bb223aa895eea91fc9e5e2d6314038eb", "status": "affected", "versionType": "git"}, {"version": "4d4df1932b6b116aecc81039066fec27f2050762", "lessThan": "1f49e861c18caf8eef7f0ad9a2c5034f88a6ba79", "status": "affected", "versionType": "git"}, {"version": "4d4df1932b6b116aecc81039066fec27f2050762", "lessThan": "e6cfb1ee18336aab41a0941d6d3ea5009aaafc05", "status": "affected", "versionType": "git"}, {"version": "4d4df1932b6b116aecc81039066fec27f2050762", "lessThan": "9f31de4d07e4cde91dfc24522993a5fbb4d67083", "status": "affected", "versionType": "git"}, {"version": "4d4df1932b6b116aecc81039066fec27f2050762", "lessThan": "9efaa782845b4d5fb3e01242be0d06ebc7428d8f", "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/qla2xxx/qla_mbx.c"], "versions": [{"version": "2.6.26", "status": "affected"}, {"version": "0", "lessThan": "2.6.26", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.270", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.221", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.188", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.157", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.110", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.51", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.5", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "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": "2.6.26", "versionEndExcluding": "5.10.270"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.26", "versionEndExcluding": "5.15.221"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.26", "versionEndExcluding": "6.1.188"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.26", "versionEndExcluding": "6.6.157"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.26", "versionEndExcluding": "6.12.110"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.26", "versionEndExcluding": "6.18.51"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.26", "versionEndExcluding": "7.2.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.26", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/f8fc5cc6b3284506c6ab83c822c48133377668bb"}, {"url": "https://git.kernel.org/stable/c/f29695b1138ae2539c5cd6cdaba9b1b072aaa81a"}, {"url": "https://git.kernel.org/stable/c/13d645a2cdb224d27205368f3e3c68bb160daf97"}, {"url": "https://git.kernel.org/stable/c/2f847f06bb223aa895eea91fc9e5e2d6314038eb"}, {"url": "https://git.kernel.org/stable/c/1f49e861c18caf8eef7f0ad9a2c5034f88a6ba79"}, {"url": "https://git.kernel.org/stable/c/e6cfb1ee18336aab41a0941d6d3ea5009aaafc05"}, {"url": "https://git.kernel.org/stable/c/9f31de4d07e4cde91dfc24522993a5fbb4d67083"}, {"url": "https://git.kernel.org/stable/c/9efaa782845b4d5fb3e01242be0d06ebc7428d8f"}], "title": "scsi: qla2xxx: Zero mailbox struct in qla2x00_get_firmware_state()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/scsi/qla2xxx/qla_mbx.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "f8fc5cc6b3284506c6ab83c822c48133377668bb", "status": "affected", "version": "4d4df1932b6b116aecc81039066fec27f2050762", "versionType": "git"}, {"lessThan": "f29695b1138ae2539c5cd6cdaba9b1b072aaa81a", "status": "affected", "version": "4d4df1932b6b116aecc81039066fec27f2050762", "versionType": "git"}, {"lessThan": "13d645a2cdb224d27205368f3e3c68bb160daf97", "status": "affected", "version": "4d4df1932b6b116aecc81039066fec27f2050762", "versionType": "git"}, {"lessThan": "2f847f06bb223aa895eea91fc9e5e2d6314038eb", "status": "affected", "version": "4d4df1932b6b116aecc81039066fec27f2050762", "versionType": "git"}, {"lessThan": "1f49e861c18caf8eef7f0ad9a2c5034f88a6ba79", "status": "affected", "version": "4d4df1932b6b116aecc81039066fec27f2050762", "versionType": "git"}, {"lessThan": "e6cfb1ee18336aab41a0941d6d3ea5009aaafc05", "status": "affected", "version": "4d4df1932b6b116aecc81039066fec27f2050762", "versionType": "git"}, {"lessThan": "9f31de4d07e4cde91dfc24522993a5fbb4d67083", "status": "affected", "version": "4d4df1932b6b116aecc81039066fec27f2050762", "versionType": "git"}, {"lessThan": "9efaa782845b4d5fb3e01242be0d06ebc7428d8f", "status": "affected", "version": "4d4df1932b6b116aecc81039066fec27f2050762", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/scsi/qla2xxx/qla_mbx.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "2.6.26"}, {"lessThan": "2.6.26", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.270", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.221", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.188", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.157", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.110", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.51", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.5", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Zero mailbox struct in qla2x00_get_firmware_state()\n\nThe mbx_cmd_t is allocated on the stack but left uninitialized.\nqla2x00_mailbox_command() has several early-return paths (PCI permanent\nfailure, device failed, EEH busy, ISP abort pending, mailbox access\ntimeout, purge mbox) that return without writing the input mailbox\nregisters back into mcp->mb[]. qla2x00_get_firmware_state() then\nunconditionally copies mcp->mb[1..6] (and mb[12]) into the caller's\nstates[] array regardless of the return value.\n\nOn such a failure the copied values are uninitialized kernel stack\nmemory, which is then exposed to userspace via the fw_state and\nmpi_fw_state sysfs handlers. Zero the mailbox struct so a failed query\nyields deterministic zeroed state instead of leaking stack contents."}], "id": "CVE-2026-89852", "lastModified": "2026-10-19T09:18:29.437", "metrics": {}, "published": "2026-09-16T11:16:52.900", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/13d645a2cdb224d27205368f3e3c68bb160daf97"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1f49e861c18caf8eef7f0ad9a2c5034f88a6ba79"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2f847f06bb223aa895eea91fc9e5e2d6314038eb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9efaa782845b4d5fb3e01242be0d06ebc7428d8f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9f31de4d07e4cde91dfc24522993a5fbb4d67083"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e6cfb1ee18336aab41a0941d6d3ea5009aaafc05"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f29695b1138ae2539c5cd6cdaba9b1b072aaa81a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f8fc5cc6b3284506c6ab83c822c48133377668bb"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4d4df1932b6b116aecc81039066fec27f2050762,f8fc5cc6b3284506c6ab83c822c48133377668bb)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4d4df1932b6b116aecc81039066fec27f2050762,f29695b1138ae2539c5cd6cdaba9b1b072aaa81a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4d4df1932b6b116aecc81039066fec27f2050762,13d645a2cdb224d27205368f3e3c68bb160daf97)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4d4df1932b6b116aecc81039066fec27f2050762,2f847f06bb223aa895eea91fc9e5e2d6314038eb)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4d4df1932b6b116aecc81039066fec27f2050762,1f49e861c18caf8eef7f0ad9a2c5034f88a6ba79)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4d4df1932b6b116aecc81039066fec27f2050762,e6cfb1ee18336aab41a0941d6d3ea5009aaafc05)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4d4df1932b6b116aecc81039066fec27f2050762,9f31de4d07e4cde91dfc24522993a5fbb4d67083)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4d4df1932b6b116aecc81039066fec27f2050762,9efaa782845b4d5fb3e01242be0d06ebc7428d8f)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "2.6.26"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,2.6.26)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.10.270,5.10.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.15.221,5.15.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.188,6.1.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.157,6.6.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.110,6.12.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.51,6.18.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.5,7.2.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.3-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-09-17T07:45:17.704252+00:00", "updated": "2026-09-18T08:30:06.694510+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-457"]}