{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-23306", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-01-13T15:37:45.993Z", "datePublished": "2026-03-25T10:27:01.719Z", "dateUpdated": "2026-08-05T12:21:11.431Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:21:11.431Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: pm8001: Fix use-after-free in pm8001_queue_command()\n\nCommit e29c47fe8946 (\"scsi: pm8001: Simplify pm8001_task_exec()\") refactors\npm8001_queue_command(), however it introduces a potential cause of a double\nfree scenario when it changes the function to return -ENODEV in case of phy\ndown/device gone state.\n\nIn this path, pm8001_queue_command() updates task status and calls\ntask_done to indicate to upper layer that the task has been handled.\nHowever, this also frees the underlying SAS task. A -ENODEV is then\nreturned to the caller. When libsas sas_ata_qc_issue() receives this error\nvalue, it assumes the task wasn't handled/queued by LLDD and proceeds to\nclean up and free the task again, resulting in a double free.\n\nSince pm8001_queue_command() handles the SAS task in this case, it should\nreturn 0 to the caller indicating that the task has been handled." } ], "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 pm8001 is a PCI-based SAS/SATA host bus adapter driver. Triggering this vulnerability requires local access to submit SCSI/ATA commands to a device managed by this HBA, which is done through local SCSI device interfaces.\nAC:L - The vulnerability triggers deterministically when I/O is submitted to a SATA device that is in the \"gone\" state. The attacker can control the device removal (e.g., by physically disconnecting a SATA drive or through hotplug) and then issue I/O, reliably triggering the double-free.\nPR:L - Submitting SCSI commands requires access to SCSI device files (e.g., /dev/sdX), which typically requires at least basic user-level access with appropriate device permissions. Root is not strictly required if the user has group access to the device.\nUI:N - No user interaction is required. The attacker can trigger the vulnerability by issuing I/O commands to a gone device independently.\nS:U - The vulnerability affects the kernel within its own security authority. There is no crossing of a security boundary such as a VM escape or sandbox escape.\nC:H - A double-free on slab memory (kmem_cache) is a powerful exploitation primitive. Through heap spraying, an attacker can control the contents of the reallocated object, potentially achieving arbitrary kernel memory read capabilities.\nI:H - The double-free allows an attacker to reclaim the freed slab object with controlled data, enabling type confusion and arbitrary kernel memory write primitives that can lead to code execution.\nA:H - The double-free will at minimum cause a kernel crash/panic when the slab allocator detects corruption, and can also be used to cause repeated crashes for denial of service." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/scsi/pm8001/pm8001_sas.c" ], "versions": [ { "version": "e29c47fe8946cc732b0e0d393b65b13c84bb69d0", "lessThan": "ebbb852ffbc952b95ddb7e3872b67b3e74c6da47", "status": "affected", "versionType": "git" }, { "version": "e29c47fe8946cc732b0e0d393b65b13c84bb69d0", "lessThan": "8b00427317ba7b7ec91252b034009f638d0f311b", "status": "affected", "versionType": "git" }, { "version": "e29c47fe8946cc732b0e0d393b65b13c84bb69d0", "lessThan": "c5dc39f8ae055520fd778b7fb0423f11586f15c4", "status": "affected", "versionType": "git" }, { "version": "e29c47fe8946cc732b0e0d393b65b13c84bb69d0", "lessThan": "824a7672e3540962d5c77d4c6666254d7aa6f0b3", "status": "affected", "versionType": "git" }, { "version": "e29c47fe8946cc732b0e0d393b65b13c84bb69d0", "lessThan": "227ff4af00abc40b95123cc27ee8079069dcd8d7", "status": "affected", "versionType": "git" }, { "version": "e29c47fe8946cc732b0e0d393b65b13c84bb69d0", "lessThan": "38353c26db28efd984f51d426eac2396d299cca7", "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/pm8001/pm8001_sas.c" ], "versions": [ { "version": "5.18", "status": "affected" }, { "version": "0", "lessThan": "5.18", "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": "5.18", "versionEndExcluding": "6.1.167" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.18", "versionEndExcluding": "6.6.130" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.18", "versionEndExcluding": "6.12.77" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.18", "versionEndExcluding": "6.18.17" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.18", "versionEndExcluding": "6.19.7" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.18", "versionEndExcluding": "7.0" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/ebbb852ffbc952b95ddb7e3872b67b3e74c6da47" }, { "url": "https://git.kernel.org/stable/c/8b00427317ba7b7ec91252b034009f638d0f311b" }, { "url": "https://git.kernel.org/stable/c/c5dc39f8ae055520fd778b7fb0423f11586f15c4" }, { "url": "https://git.kernel.org/stable/c/824a7672e3540962d5c77d4c6666254d7aa6f0b3" }, { "url": "https://git.kernel.org/stable/c/227ff4af00abc40b95123cc27ee8079069dcd8d7" }, { "url": "https://git.kernel.org/stable/c/38353c26db28efd984f51d426eac2396d299cca7" } ], "title": "scsi: pm8001: Fix use-after-free in pm8001_queue_command()", "x_generator": { "engine": "bippy-1.2.0" } } } }