| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncachefiles: fix dentry leak in cachefiles_open_file()\n\nA dentry leak may be caused when a lookup cookie and a cull are concurrent:\n\n P1 | P2\n-----------------------------------------------------------\ncachefiles_lookup_cookie\n cachefiles_look_up_object\n lookup_one_positive_unlocked\n // get dentry\n cachefiles_cull\n inode->i_flags |= S_KERNEL_FILE;\n cachefiles_open_file\n cachefiles_mark_inode_in_use\n __cachefiles_mark_inode_in_use\n can_use = false\n if (!(inode->i_flags & S_KERNEL_FILE))\n can_use = true\n\t return false\n return false\n // Returns an error but doesn't put dentry\n\nAfter that the following WARNING will be triggered when the backend folder\nis umounted:\n\n==================================================================\nBUG: Dentry 000000008ad87947{i=7a,n=Dx_1_1.img} still in use (1) [unmount of ext4 sda]\nWARNING: CPU: 4 PID: 359261 at fs/dcache.c:1767 umount_check+0x5d/0x70\nCPU: 4 PID: 359261 Comm: umount Not tainted 6.6.0-dirty #25\nRIP: 0010:umount_check+0x5d/0x70\nCall Trace:\n <TASK>\n d_walk+0xda/0x2b0\n do_one_tree+0x20/0x40\n shrink_dcache_for_umount+0x2c/0x90\n generic_shutdown_super+0x20/0x160\n kill_block_super+0x1a/0x40\n ext4_kill_sb+0x22/0x40\n deactivate_locked_super+0x35/0x80\n cleanup_mnt+0x104/0x160\n==================================================================\n\nWhether cachefiles_open_file() returns true or false, the reference count\nobtained by lookup_positive_unlocked() in cachefiles_look_up_object()\nshould be released.\n\nTherefore release that reference count in cachefiles_look_up_object() to\nfix the above issue and simplify the code." |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "fs/cachefiles/namei.c" |
| ], |
| "versions": [ |
| { |
| "version": "1f08c925e7a38002bde509e66f6f891468848511", |
| "lessThan": "d32ff64c872d7e08e893c32ba6a2374583444410", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "1f08c925e7a38002bde509e66f6f891468848511", |
| "lessThan": "c7d10fa7d7691558ff967668494672415f5fa151", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "1f08c925e7a38002bde509e66f6f891468848511", |
| "lessThan": "e4a28489b310339b2b8187bec0a437709be551c1", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "1f08c925e7a38002bde509e66f6f891468848511", |
| "lessThan": "7fa2382f97421978514a419c93054eca69f5247b", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "1f08c925e7a38002bde509e66f6f891468848511", |
| "lessThan": "da6ef2dffe6056aad3435e6cf7c6471c2a62187c", |
| "status": "affected", |
| "versionType": "git" |
| } |
| ] |
| }, |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "affected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "fs/cachefiles/namei.c" |
| ], |
| "versions": [ |
| { |
| "version": "5.17", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "5.17", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.1.113", |
| "lessThanOrEqual": "6.1.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.6.55", |
| "lessThanOrEqual": "6.6.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.10.14", |
| "lessThanOrEqual": "6.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.11.3", |
| "lessThanOrEqual": "6.11.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.12", |
| "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": "6.1.113" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.17", |
| "versionEndExcluding": "6.6.55" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.17", |
| "versionEndExcluding": "6.10.14" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.17", |
| "versionEndExcluding": "6.11.3" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.17", |
| "versionEndExcluding": "6.12" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/d32ff64c872d7e08e893c32ba6a2374583444410" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/c7d10fa7d7691558ff967668494672415f5fa151" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/e4a28489b310339b2b8187bec0a437709be551c1" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/7fa2382f97421978514a419c93054eca69f5247b" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/da6ef2dffe6056aad3435e6cf7c6471c2a62187c" |
| } |
| ], |
| "title": "cachefiles: fix dentry leak in cachefiles_open_file()", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2024-49870", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
