{ "dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": { "cveId": "CVE-2024-41058", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-07-12T12:17:45.627Z", "datePublished": "2024-07-29T14:57:20.894Z", "dateUpdated": "2024-09-11T17:34:01.669Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-07-29T14:57:20.894Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncachefiles: fix slab-use-after-free in fscache_withdraw_volume()\n\nWe got the following issue in our fault injection stress test:\n\n==================================================================\nBUG: KASAN: slab-use-after-free in fscache_withdraw_volume+0x2e1/0x370\nRead of size 4 at addr ffff88810680be08 by task ondemand-04-dae/5798\n\nCPU: 0 PID: 5798 Comm: ondemand-04-dae Not tainted 6.8.0-dirty #565\nCall Trace:\n kasan_check_range+0xf6/0x1b0\n fscache_withdraw_volume+0x2e1/0x370\n cachefiles_withdraw_volume+0x31/0x50\n cachefiles_withdraw_cache+0x3ad/0x900\n cachefiles_put_unbind_pincount+0x1f6/0x250\n cachefiles_daemon_release+0x13b/0x290\n __fput+0x204/0xa00\n task_work_run+0x139/0x230\n\nAllocated by task 5820:\n __kmalloc+0x1df/0x4b0\n fscache_alloc_volume+0x70/0x600\n __fscache_acquire_volume+0x1c/0x610\n erofs_fscache_register_volume+0x96/0x1a0\n erofs_fscache_register_fs+0x49a/0x690\n erofs_fc_fill_super+0x6c0/0xcc0\n vfs_get_super+0xa9/0x140\n vfs_get_tree+0x8e/0x300\n do_new_mount+0x28c/0x580\n [...]\n\nFreed by task 5820:\n kfree+0xf1/0x2c0\n fscache_put_volume.part.0+0x5cb/0x9e0\n erofs_fscache_unregister_fs+0x157/0x1b0\n erofs_kill_sb+0xd9/0x1c0\n deactivate_locked_super+0xa3/0x100\n vfs_get_super+0x105/0x140\n vfs_get_tree+0x8e/0x300\n do_new_mount+0x28c/0x580\n [...]\n==================================================================\n\nFollowing is the process that triggers the issue:\n\n mount failed | daemon exit\n------------------------------------------------------------\n deactivate_locked_super cachefiles_daemon_release\n erofs_kill_sb\n erofs_fscache_unregister_fs\n fscache_relinquish_volume\n __fscache_relinquish_volume\n fscache_put_volume(fscache_volume, fscache_volume_put_relinquish)\n zero = __refcount_dec_and_test(&fscache_volume->ref, &ref);\n cachefiles_put_unbind_pincount\n cachefiles_daemon_unbind\n cachefiles_withdraw_cache\n cachefiles_withdraw_volumes\n list_del_init(&volume->cache_link)\n fscache_free_volume(fscache_volume)\n cache->ops->free_volume\n cachefiles_free_volume\n list_del_init(&cachefiles_volume->cache_link);\n kfree(fscache_volume)\n cachefiles_withdraw_volume\n fscache_withdraw_volume\n fscache_volume->n_accesses\n // fscache_volume UAF !!!\n\nThe fscache_volume in cache->volumes must not have been freed yet, but its\nreference count may be 0. So use the new fscache_try_get_volume() helper\nfunction try to get its reference count.\n\nIf the reference count of fscache_volume is 0, fscache_put_volume() is\nfreeing it, so wait for it to be removed from cache->volumes.\n\nIf its reference count is not 0, call cachefiles_withdraw_volume() with\nreference count protection to avoid the above issue." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "fs/cachefiles/cache.c", "include/trace/events/fscache.h" ], "versions": [ { "version": "fe2140e2f57f", "lessThan": "90f17e47f1e2", "status": "affected", "versionType": "git" }, { "version": "fe2140e2f57f", "lessThan": "9dd7f5663899", "status": "affected", "versionType": "git" }, { "version": "fe2140e2f57f", "lessThan": "38b88d544216", "status": "affected", "versionType": "git" }, { "version": "fe2140e2f57f", "lessThan": "522018a0de6b", "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/cache.c", "include/trace/events/fscache.h" ], "versions": [ { "version": "5.17", "status": "affected" }, { "version": "0", "lessThan": "5.17", "status": "unaffected", "versionType": "custom" }, { "version": "6.1.101", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.6.42", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.9.11", "lessThanOrEqual": "6.9.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.10", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/90f17e47f1e209c6a3c92a1d038a0a80c95c460e" }, { "url": "https://git.kernel.org/stable/c/9dd7f5663899ea13a6a73216106d9c13c37453e3" }, { "url": "https://git.kernel.org/stable/c/38b88d544216f806d93a273a62ff8ebe82254003" }, { "url": "https://git.kernel.org/stable/c/522018a0de6b6fcce60c04f86dfc5f0e4b6a1b36" } ], "title": "cachefiles: fix slab-use-after-free in fscache_withdraw_volume()", "x_generator": { "engine": "bippy-c9c4e1df01b2" } }, "adp": [ { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T04:46:51.695Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/90f17e47f1e209c6a3c92a1d038a0a80c95c460e", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/9dd7f5663899ea13a6a73216106d9c13c37453e3", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/38b88d544216f806d93a273a62ff8ebe82254003", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/522018a0de6b6fcce60c04f86dfc5f0e4b6a1b36", "tags": [ "x_transferred" ] } ] }, { "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2024-41058", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2024-09-10T16:22:18.541006Z" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T17:34:01.669Z" } } ] } }