{ "affected": [ { "ranges": [ { "events": [ { "introduced": "48669c81a65628ef234cbdd91b9395952c7c27fe" }, { "fixed": "1b33d55fb7355e27f8c82cd4ecd560f162469249" } ], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "type": "GIT" }, { "events": [ { "introduced": "37d7ae2b0578f2373674a755402ee722e96edc08" }, { "fixed": "3212afd00e3cda790fd0583cb3eaef8f9575a014" } ], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "type": "GIT" }, { "events": [ { "introduced": "a1073aad497d0d071a71f61b721966a176d50c08" }, { "fixed": "33a6e92161a78c1073d90e27abe28d746feb0a53" } ], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "type": "GIT" }, { "events": [ { "introduced": "ba316be1b6a00db7126ed9a39f9bee434a508043" }, { "fixed": "6a18eeb1b3bbc67c20d9609c31dca6a69b4bcde5" }, { "fixed": "bfab2c1f7940a232cd519e82fff137e308abfd93" }, { "fixed": "012363cb1bec5f33a7b94629ab2c1086f30280f2" }, { "fixed": "50c2037fc28df870ef29d9728c770c8955d32178" }, { "fixed": "483bc08181827fc475643272ffb69c533007e546" } ], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "type": "GIT" }, { "events": [ { "introduced": "0" }, { "last_affected": "fea63ccd928c01573306983346588b26cffb5572" }, { "last_affected": "ec1f74319bb35c1c90c25014ec0f6ea6c3ca2134" }, { "last_affected": "b657bba82ff6a007d84fd076bd73b11131726a2b" } ], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "type": "GIT" } ] } ], "database_specific": { "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/27xxx/CVE-2024-27398.json" }, "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: Fix use-after-free bugs caused by sco_sock_timeout\n\nWhen the sco connection is established and then, the sco socket\nis releasing, timeout_work will be scheduled to judge whether\nthe sco disconnection is timeout. The sock will be deallocated\nlater, but it is dereferenced again in sco_sock_timeout. As a\nresult, the use-after-free bugs will happen. The root cause is\nshown below:\n\n Cleanup Thread | Worker Thread\nsco_sock_release |\n sco_sock_close |\n __sco_sock_close |\n sco_sock_set_timer |\n schedule_delayed_work |\n sco_sock_kill | (wait a time)\n sock_put(sk) //FREE | sco_sock_timeout\n | sock_hold(sk) //USE\n\nThe KASAN report triggered by POC is shown below:\n\n[ 95.890016] ==================================================================\n[ 95.890496] BUG: KASAN: slab-use-after-free in sco_sock_timeout+0x5e/0x1c0\n[ 95.890755] Write of size 4 at addr ffff88800c388080 by task kworker/0:0/7\n...\n[ 95.890755] Workqueue: events sco_sock_timeout\n[ 95.890755] Call Trace:\n[ 95.890755] \u003cTASK\u003e\n[ 95.890755] dump_stack_lvl+0x45/0x110\n[ 95.890755] print_address_description+0x78/0x390\n[ 95.890755] print_report+0x11b/0x250\n[ 95.890755] ? __virt_addr_valid+0xbe/0xf0\n[ 95.890755] ? sco_sock_timeout+0x5e/0x1c0\n[ 95.890755] kasan_report+0x139/0x170\n[ 95.890755] ? update_load_avg+0xe5/0x9f0\n[ 95.890755] ? sco_sock_timeout+0x5e/0x1c0\n[ 95.890755] kasan_check_range+0x2c3/0x2e0\n[ 95.890755] sco_sock_timeout+0x5e/0x1c0\n[ 95.890755] process_one_work+0x561/0xc50\n[ 95.890755] worker_thread+0xab2/0x13c0\n[ 95.890755] ? pr_cont_work+0x490/0x490\n[ 95.890755] kthread+0x279/0x300\n[ 95.890755] ? pr_cont_work+0x490/0x490\n[ 95.890755] ? kthread_blkcg+0xa0/0xa0\n[ 95.890755] ret_from_fork+0x34/0x60\n[ 95.890755] ? kthread_blkcg+0xa0/0xa0\n[ 95.890755] ret_from_fork_asm+0x11/0x20\n[ 95.890755] \u003c/TASK\u003e\n[ 95.890755]\n[ 95.890755] Allocated by task 506:\n[ 95.890755] kasan_save_track+0x3f/0x70\n[ 95.890755] __kasan_kmalloc+0x86/0x90\n[ 95.890755] __kmalloc+0x17f/0x360\n[ 95.890755] sk_prot_alloc+0xe1/0x1a0\n[ 95.890755] sk_alloc+0x31/0x4e0\n[ 95.890755] bt_sock_alloc+0x2b/0x2a0\n[ 95.890755] sco_sock_create+0xad/0x320\n[ 95.890755] bt_sock_create+0x145/0x320\n[ 95.890755] __sock_create+0x2e1/0x650\n[ 95.890755] __sys_socket+0xd0/0x280\n[ 95.890755] __x64_sys_socket+0x75/0x80\n[ 95.890755] do_syscall_64+0xc4/0x1b0\n[ 95.890755] entry_SYSCALL_64_after_hwframe+0x67/0x6f\n[ 95.890755]\n[ 95.890755] Freed by task 506:\n[ 95.890755] kasan_save_track+0x3f/0x70\n[ 95.890755] kasan_save_free_info+0x40/0x50\n[ 95.890755] poison_slab_object+0x118/0x180\n[ 95.890755] __kasan_slab_free+0x12/0x30\n[ 95.890755] kfree+0xb2/0x240\n[ 95.890755] __sk_destruct+0x317/0x410\n[ 95.890755] sco_sock_release+0x232/0x280\n[ 95.890755] sock_close+0xb2/0x210\n[ 95.890755] __fput+0x37f/0x770\n[ 95.890755] task_work_run+0x1ae/0x210\n[ 95.890755] get_signal+0xe17/0xf70\n[ 95.890755] arch_do_signal_or_restart+0x3f/0x520\n[ 95.890755] syscall_exit_to_user_mode+0x55/0x120\n[ 95.890755] do_syscall_64+0xd1/0x1b0\n[ 95.890755] entry_SYSCALL_64_after_hwframe+0x67/0x6f\n[ 95.890755]\n[ 95.890755] The buggy address belongs to the object at ffff88800c388000\n[ 95.890755] which belongs to the cache kmalloc-1k of size 1024\n[ 95.890755] The buggy address is located 128 bytes inside of\n[ 95.890755] freed 1024-byte region [ffff88800c388000, ffff88800c388400)\n[ 95.890755]\n[ 95.890755] The buggy address belongs to the physical page:\n[ 95.890755] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88800c38a800 pfn:0xc388\n[ 95.890755] head: order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0\n[ 95.890755] ano\n---truncated---", "id": "CVE-2024-27398", "modified": "2026-04-01T23:09:43.067698732Z", "published": "2024-05-13T10:22:26.624Z", "references": [ { "type": "WEB", "url": "http://www.openwall.com/lists/oss-security/2024/11/29/1" }, { "type": "WEB", "url": "http://www.openwall.com/lists/oss-security/2024/11/30/1" }, { "type": "WEB", "url": "http://www.openwall.com/lists/oss-security/2024/11/30/2" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/012363cb1bec5f33a7b94629ab2c1086f30280f2" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/1b33d55fb7355e27f8c82cd4ecd560f162469249" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/3212afd00e3cda790fd0583cb3eaef8f9575a014" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/33a6e92161a78c1073d90e27abe28d746feb0a53" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/483bc08181827fc475643272ffb69c533007e546" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/50c2037fc28df870ef29d9728c770c8955d32178" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/6a18eeb1b3bbc67c20d9609c31dca6a69b4bcde5" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/bfab2c1f7940a232cd519e82fff137e308abfd93" }, { "type": "WEB", "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00019.html" }, { "type": "WEB", "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html" }, { "type": "WEB", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DW2MIOIMOFUSNLHLRYX23AFR36BMKD65/" }, { "type": "WEB", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OTB4HWU2PTVW5NEYHHLOCXDKG3PYA534/" }, { "type": "ADVISORY", "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/27xxx/CVE-2024-27398.json" }, { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-27398" }, { "type": "ADVISORY", "url": "https://security.netapp.com/advisory/ntap-20240912-0012/" }, { "type": "PACKAGE", "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git" } ], "schema_version": "1.7.3", "summary": "Bluetooth: Fix use-after-free bugs caused by sco_sock_timeout" }