{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-68373", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-12-16T14:48:05.310Z", "datePublished": "2025-12-24T10:33:03.375Z", "dateUpdated": "2026-02-09T08:32:10.924Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-02-09T08:32:10.924Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmd: avoid repeated calls to del_gendisk\n\nThere is a uaf problem which is found by case 23rdev-lifetime:\n\nOops: general protection fault, probably for non-canonical address 0xdead000000000122\nRIP: 0010:bdi_unregister+0x4b/0x170\nCall Trace:\n <TASK>\n __del_gendisk+0x356/0x3e0\n mddev_unlock+0x351/0x360\n rdev_attr_store+0x217/0x280\n kernfs_fop_write_iter+0x14a/0x210\n vfs_write+0x29e/0x550\n ksys_write+0x74/0xf0\n do_syscall_64+0xbb/0x380\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\nRIP: 0033:0x7ff5250a177e\n\nThe sequence is:\n1. rdev remove path gets reconfig_mutex\n2. rdev remove path release reconfig_mutex in mddev_unlock\n3. md stop calls do_md_stop and sets MD_DELETED\n4. rdev remove path calls del_gendisk because MD_DELETED is set\n5. md stop path release reconfig_mutex and calls del_gendisk again\n\nSo there is a race condition we should resolve. This patch adds a\nflag MD_DO_DELETE to avoid the race condition."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/md/md.c", "drivers/md/md.h"], "versions": [{"version": "9e59d609763f70a992a8f3808dabcce60f14eb5c", "lessThan": "b4c5cf406062ad44cd178269571530c6435b2f3b", "status": "affected", "versionType": "git"}, {"version": "9e59d609763f70a992a8f3808dabcce60f14eb5c", "lessThan": "f0fae1debeb9102398ddf2ef69b4f5d395afafed", "status": "affected", "versionType": "git"}, {"version": "9e59d609763f70a992a8f3808dabcce60f14eb5c", "lessThan": "90e3bb44c0a86e245d8e5c6520206fa113acb1ee", "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/md/md.c", "drivers/md/md.h"], "versions": [{"version": "6.17", "status": "affected"}, {"version": "0", "lessThan": "6.17", "status": "unaffected", "versionType": "semver"}, {"version": "6.17.13", "lessThanOrEqual": "6.17.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.2", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19", "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": "6.17", "versionEndExcluding": "6.17.13"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "6.18.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "6.19"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/b4c5cf406062ad44cd178269571530c6435b2f3b"}, {"url": "https://git.kernel.org/stable/c/f0fae1debeb9102398ddf2ef69b4f5d395afafed"}, {"url": "https://git.kernel.org/stable/c/90e3bb44c0a86e245d8e5c6520206fa113acb1ee"}], "title": "md: avoid repeated calls to del_gendisk", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmd: avoid repeated calls to del_gendisk\n\nThere is a uaf problem which is found by case 23rdev-lifetime:\n\nOops: general protection fault, probably for non-canonical address 0xdead000000000122\nRIP: 0010:bdi_unregister+0x4b/0x170\nCall Trace:\n <TASK>\n __del_gendisk+0x356/0x3e0\n mddev_unlock+0x351/0x360\n rdev_attr_store+0x217/0x280\n kernfs_fop_write_iter+0x14a/0x210\n vfs_write+0x29e/0x550\n ksys_write+0x74/0xf0\n do_syscall_64+0xbb/0x380\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\nRIP: 0033:0x7ff5250a177e\n\nThe sequence is:\n1. rdev remove path gets reconfig_mutex\n2. rdev remove path release reconfig_mutex in mddev_unlock\n3. md stop calls do_md_stop and sets MD_DELETED\n4. rdev remove path calls del_gendisk because MD_DELETED is set\n5. md stop path release reconfig_mutex and calls del_gendisk again\n\nSo there is a race condition we should resolve. This patch adds a\nflag MD_DO_DELETE to avoid the race condition."}], "id": "CVE-2025-68373", "lastModified": "2025-12-29T15:58:34.503", "metrics": {}, "published": "2025-12-24T11:16:00.890", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/90e3bb44c0a86e245d8e5c6520206fa113acb1ee"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b4c5cf406062ad44cd178269571530c6435b2f3b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f0fae1debeb9102398ddf2ef69b4f5d395afafed"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: md: avoid repeated calls to del_gendisk", "id": "2424896", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2424896"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["No description is available for this CVE."], "name": "CVE-2025-68373", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-12-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-68373\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-68373\nhttps://lore.kernel.org/linux-cve-announce/2025122401-CVE-2025-68373-c983@gregkh/T"], "threat_severity": "Low"}

{}