{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2023-54117", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-12-24T13:02:52.520Z", "datePublished": "2025-12-24T13:06:38.311Z", "dateUpdated": "2025-12-24T13:06:38.311Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-12-24T13:06:38.311Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/dcssblk: fix kernel crash with list_add corruption\n\nCommit fb08a1908cb1 (\"dax: simplify the dax_device <-> gendisk\nassociation\") introduced new logic for gendisk association, requiring\ndrivers to explicitly call dax_add_host() and dax_remove_host().\n\nFor dcssblk driver, some dax_remove_host() calls were missing, e.g. in\ndevice remove path. The commit also broke error handling for out_dax case\nin device add path, resulting in an extra put_device() w/o the previous\nget_device() in that case.\n\nThis lead to stale xarray entries after device add / remove cycles. In the\ncase when a previously used struct gendisk pointer (xarray index) would be\nused again, because blk_alloc_disk() happened to return such a pointer, the\nxa_insert() in dax_add_host() would fail and go to out_dax, doing the extra\nput_device() in the error path. In combination with an already flawed error\nhandling in dcssblk (device_register() cleanup), which needs to be\naddressed in a separate patch, this resulted in a missing device_del() /\nklist_del(), and eventually in the kernel crash with list_add corruption on\na subsequent device_add() / klist_add().\n\nFix this by adding the missing dax_remove_host() calls, and also move the\nput_device() in the error path to restore the previous logic."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/s390/block/dcssblk.c"], "versions": [{"version": "fb08a1908cb119a4585611d91461ab6d27756b14", "lessThan": "6489ec0107860345bc57dcde39e63dfb05ac5c11", "status": "affected", "versionType": "git"}, {"version": "fb08a1908cb119a4585611d91461ab6d27756b14", "lessThan": "b7ad75c77349beb4983b9f27108d9b3f33ae1413", "status": "affected", "versionType": "git"}, {"version": "fb08a1908cb119a4585611d91461ab6d27756b14", "lessThan": "b5c531a9a7d8e047c90c909f09cef06a9f8e62f4", "status": "affected", "versionType": "git"}, {"version": "fb08a1908cb119a4585611d91461ab6d27756b14", "lessThan": "c8f40a0bccefd613748d080147469a4652d6e74c", "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/s390/block/dcssblk.c"], "versions": [{"version": "5.17", "status": "affected"}, {"version": "0", "lessThan": "5.17", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.53", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.4.16", "lessThanOrEqual": "6.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.5.3", "lessThanOrEqual": "6.5.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6", "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": "5.17", "versionEndExcluding": "6.1.53"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.17", "versionEndExcluding": "6.4.16"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.17", "versionEndExcluding": "6.5.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.17", "versionEndExcluding": "6.6"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/6489ec0107860345bc57dcde39e63dfb05ac5c11"}, {"url": "https://git.kernel.org/stable/c/b7ad75c77349beb4983b9f27108d9b3f33ae1413"}, {"url": "https://git.kernel.org/stable/c/b5c531a9a7d8e047c90c909f09cef06a9f8e62f4"}, {"url": "https://git.kernel.org/stable/c/c8f40a0bccefd613748d080147469a4652d6e74c"}], "title": "s390/dcssblk: fix kernel crash with list_add corruption", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/dcssblk: fix kernel crash with list_add corruption\n\nCommit fb08a1908cb1 (\"dax: simplify the dax_device <-> gendisk\nassociation\") introduced new logic for gendisk association, requiring\ndrivers to explicitly call dax_add_host() and dax_remove_host().\n\nFor dcssblk driver, some dax_remove_host() calls were missing, e.g. in\ndevice remove path. The commit also broke error handling for out_dax case\nin device add path, resulting in an extra put_device() w/o the previous\nget_device() in that case.\n\nThis lead to stale xarray entries after device add / remove cycles. In the\ncase when a previously used struct gendisk pointer (xarray index) would be\nused again, because blk_alloc_disk() happened to return such a pointer, the\nxa_insert() in dax_add_host() would fail and go to out_dax, doing the extra\nput_device() in the error path. In combination with an already flawed error\nhandling in dcssblk (device_register() cleanup), which needs to be\naddressed in a separate patch, this resulted in a missing device_del() /\nklist_del(), and eventually in the kernel crash with list_add corruption on\na subsequent device_add() / klist_add().\n\nFix this by adding the missing dax_remove_host() calls, and also move the\nput_device() in the error path to restore the previous logic."}], "id": "CVE-2023-54117", "lastModified": "2025-12-24T13:16:13.637", "metrics": {}, "published": "2025-12-24T13:16:13.637", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6489ec0107860345bc57dcde39e63dfb05ac5c11"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b5c531a9a7d8e047c90c909f09cef06a9f8e62f4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b7ad75c77349beb4983b9f27108d9b3f33ae1413"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c8f40a0bccefd613748d080147469a4652d6e74c"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}