| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "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] <TASK>\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] </TASK>\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---" |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "net/bluetooth/sco.c" |
| ], |
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| { |
| "version": "48669c81a65628ef234cbdd91b9395952c7c27fe", |
| "lessThan": "1b33d55fb7355e27f8c82cd4ecd560f162469249", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "37d7ae2b0578f2373674a755402ee722e96edc08", |
| "lessThan": "3212afd00e3cda790fd0583cb3eaef8f9575a014", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "a1073aad497d0d071a71f61b721966a176d50c08", |
| "lessThan": "33a6e92161a78c1073d90e27abe28d746feb0a53", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "ba316be1b6a00db7126ed9a39f9bee434a508043", |
| "lessThan": "6a18eeb1b3bbc67c20d9609c31dca6a69b4bcde5", |
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| "versionType": "git" |
| }, |
| { |
| "version": "ba316be1b6a00db7126ed9a39f9bee434a508043", |
| "lessThan": "bfab2c1f7940a232cd519e82fff137e308abfd93", |
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| }, |
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| "lessThan": "012363cb1bec5f33a7b94629ab2c1086f30280f2", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "ba316be1b6a00db7126ed9a39f9bee434a508043", |
| "lessThan": "50c2037fc28df870ef29d9728c770c8955d32178", |
| "status": "affected", |
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| }, |
| { |
| "version": "ba316be1b6a00db7126ed9a39f9bee434a508043", |
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| }, |
| { |
| "version": "fea63ccd928c01573306983346588b26cffb5572", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "ec1f74319bb35c1c90c25014ec0f6ea6c3ca2134", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "b657bba82ff6a007d84fd076bd73b11131726a2b", |
| "status": "affected", |
| "versionType": "git" |
| } |
| ] |
| }, |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "affected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "net/bluetooth/sco.c" |
| ], |
| "versions": [ |
| { |
| "version": "5.15", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "5.15", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.19.314", |
| "lessThanOrEqual": "4.19.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.4.276", |
| "lessThanOrEqual": "5.4.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.10.217", |
| "lessThanOrEqual": "5.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.15.159", |
| "lessThanOrEqual": "5.15.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.1.91", |
| "lessThanOrEqual": "6.1.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.6.31", |
| "lessThanOrEqual": "6.6.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.8.10", |
| "lessThanOrEqual": "6.8.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.9", |
| "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": "4.19.207", |
| "versionEndExcluding": "4.19.314" |
| }, |
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| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
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| }, |
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| }, |
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| }, |
| { |
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| "versionStartIncluding": "4.14.263" |
| }, |
| { |
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| } |
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| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/1b33d55fb7355e27f8c82cd4ecd560f162469249" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/3212afd00e3cda790fd0583cb3eaef8f9575a014" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/33a6e92161a78c1073d90e27abe28d746feb0a53" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/6a18eeb1b3bbc67c20d9609c31dca6a69b4bcde5" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/bfab2c1f7940a232cd519e82fff137e308abfd93" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/012363cb1bec5f33a7b94629ab2c1086f30280f2" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/50c2037fc28df870ef29d9728c770c8955d32178" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/483bc08181827fc475643272ffb69c533007e546" |
| } |
| ], |
| "title": "Bluetooth: Fix use-after-free bugs caused by sco_sock_timeout", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2024-27398", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
