CVE-2024-53167
Vulnerability from cvelistv5
Published
2024-12-27 13:49
Modified
2024-12-27 13:49
Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
nfs/blocklayout: Don't attempt unregister for invalid block device
Since commit d869da91cccb ("nfs/blocklayout: Fix premature PR key
unregistration") an unmount of a pNFS SCSI layout-enabled NFS may
dereference a NULL block_device in:
bl_unregister_scsi+0x16/0xe0 [blocklayoutdriver]
bl_free_device+0x70/0x80 [blocklayoutdriver]
bl_free_deviceid_node+0x12/0x30 [blocklayoutdriver]
nfs4_put_deviceid_node+0x60/0xc0 [nfsv4]
nfs4_deviceid_purge_client+0x132/0x190 [nfsv4]
unset_pnfs_layoutdriver+0x59/0x60 [nfsv4]
nfs4_destroy_server+0x36/0x70 [nfsv4]
nfs_free_server+0x23/0xe0 [nfs]
deactivate_locked_super+0x30/0xb0
cleanup_mnt+0xba/0x150
task_work_run+0x59/0x90
syscall_exit_to_user_mode+0x217/0x220
do_syscall_64+0x8e/0x160
This happens because even though we were able to create the
nfs4_deviceid_node, the lookup for the device was unable to attach the
block device to the pnfs_block_dev.
If we never found a block device to register, we can avoid this case with
the PNFS_BDEV_REGISTERED flag. Move the deref behind the test for the
flag.
References
Impacted products
{ "containers": { "cna": { "affected": [ { "defaultStatus": "unaffected", "product": "Linux", "programFiles": [ "fs/nfs/blocklayout/dev.c" ], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [ { "lessThan": "3402704a424f34bbcca7f4a4503859357f422217", "status": "affected", "version": "d869da91cccb90320e101a2758f1e2b3803ade5c", "versionType": "git" }, { "lessThan": "faa4bacfaeed827a4ca8cb8529a3ce65a9e8ef46", "status": "affected", "version": "d869da91cccb90320e101a2758f1e2b3803ade5c", "versionType": "git" }, { "lessThan": "3a4ce14d9a6b868e0787e4582420b721c04ee41e", "status": "affected", "version": "d869da91cccb90320e101a2758f1e2b3803ade5c", "versionType": "git" } ] }, { "defaultStatus": "affected", "product": "Linux", "programFiles": [ "fs/nfs/blocklayout/dev.c" ], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [ { "status": "affected", "version": "6.11" }, { "lessThan": "6.11", "status": "unaffected", "version": "0", "versionType": "semver" }, { "lessThanOrEqual": "6.11.*", "status": "unaffected", "version": "6.11.11", "versionType": "semver" }, { "lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.2", "versionType": "semver" }, { "lessThanOrEqual": "*", "status": "unaffected", "version": "6.13-rc1", "versionType": "original_commit_for_fix" } ] } ], "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfs/blocklayout: Don\u0027t attempt unregister for invalid block device\n\nSince commit d869da91cccb (\"nfs/blocklayout: Fix premature PR key\nunregistration\") an unmount of a pNFS SCSI layout-enabled NFS may\ndereference a NULL block_device in:\n\n bl_unregister_scsi+0x16/0xe0 [blocklayoutdriver]\n bl_free_device+0x70/0x80 [blocklayoutdriver]\n bl_free_deviceid_node+0x12/0x30 [blocklayoutdriver]\n nfs4_put_deviceid_node+0x60/0xc0 [nfsv4]\n nfs4_deviceid_purge_client+0x132/0x190 [nfsv4]\n unset_pnfs_layoutdriver+0x59/0x60 [nfsv4]\n nfs4_destroy_server+0x36/0x70 [nfsv4]\n nfs_free_server+0x23/0xe0 [nfs]\n deactivate_locked_super+0x30/0xb0\n cleanup_mnt+0xba/0x150\n task_work_run+0x59/0x90\n syscall_exit_to_user_mode+0x217/0x220\n do_syscall_64+0x8e/0x160\n\nThis happens because even though we were able to create the\nnfs4_deviceid_node, the lookup for the device was unable to attach the\nblock device to the pnfs_block_dev.\n\nIf we never found a block device to register, we can avoid this case with\nthe PNFS_BDEV_REGISTERED flag. Move the deref behind the test for the\nflag." } ], "providerMetadata": { "dateUpdated": "2024-12-27T13:49:13.201Z", "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux" }, "references": [ { "url": "https://git.kernel.org/stable/c/3402704a424f34bbcca7f4a4503859357f422217" }, { "url": "https://git.kernel.org/stable/c/faa4bacfaeed827a4ca8cb8529a3ce65a9e8ef46" }, { "url": "https://git.kernel.org/stable/c/3a4ce14d9a6b868e0787e4582420b721c04ee41e" } ], "title": "nfs/blocklayout: Don\u0027t attempt unregister for invalid block device", "x_generator": { "engine": "bippy-5f407fcff5a0" } } }, "cveMetadata": { "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "assignerShortName": "Linux", "cveId": "CVE-2024-53167", "datePublished": "2024-12-27T13:49:13.201Z", "dateReserved": "2024-11-19T17:17:25.005Z", "dateUpdated": "2024-12-27T13:49:13.201Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "vulnerability-lookup:meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2024-53167\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-12-27T14:15:23.820\",\"lastModified\":\"2024-12-27T14:15:23.820\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnfs/blocklayout: Don\u0027t attempt unregister for invalid block device\\n\\nSince commit d869da91cccb (\\\"nfs/blocklayout: Fix premature PR key\\nunregistration\\\") an unmount of a pNFS SCSI layout-enabled NFS may\\ndereference a NULL block_device in:\\n\\n bl_unregister_scsi+0x16/0xe0 [blocklayoutdriver]\\n bl_free_device+0x70/0x80 [blocklayoutdriver]\\n bl_free_deviceid_node+0x12/0x30 [blocklayoutdriver]\\n nfs4_put_deviceid_node+0x60/0xc0 [nfsv4]\\n nfs4_deviceid_purge_client+0x132/0x190 [nfsv4]\\n unset_pnfs_layoutdriver+0x59/0x60 [nfsv4]\\n nfs4_destroy_server+0x36/0x70 [nfsv4]\\n nfs_free_server+0x23/0xe0 [nfs]\\n deactivate_locked_super+0x30/0xb0\\n cleanup_mnt+0xba/0x150\\n task_work_run+0x59/0x90\\n syscall_exit_to_user_mode+0x217/0x220\\n do_syscall_64+0x8e/0x160\\n\\nThis happens because even though we were able to create the\\nnfs4_deviceid_node, the lookup for the device was unable to attach the\\nblock device to the pnfs_block_dev.\\n\\nIf we never found a block device to register, we can avoid this case with\\nthe PNFS_BDEV_REGISTERED flag. Move the deref behind the test for the\\nflag.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/3402704a424f34bbcca7f4a4503859357f422217\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/3a4ce14d9a6b868e0787e4582420b721c04ee41e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/faa4bacfaeed827a4ca8cb8529a3ce65a9e8ef46\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}" } }
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