{ "dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": { "cveId": "CVE-2023-52772", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-05-21T15:19:24.239Z", "datePublished": "2024-05-21T15:30:54.292Z", "dateUpdated": "2024-09-11T17:33:30.543Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-05-29T05:17:05.221Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\naf_unix: fix use-after-free in unix_stream_read_actor()\n\nsyzbot reported the following crash [1]\n\nAfter releasing unix socket lock, u->oob_skb can be changed\nby another thread. We must temporarily increase skb refcount\nto make sure this other thread will not free the skb under us.\n\n[1]\n\nBUG: KASAN: slab-use-after-free in unix_stream_read_actor+0xa7/0xc0 net/unix/af_unix.c:2866\nRead of size 4 at addr ffff88801f3b9cc4 by task syz-executor107/5297\n\nCPU: 1 PID: 5297 Comm: syz-executor107 Not tainted 6.6.0-syzkaller-15910-gb8e3a87a627b #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023\nCall Trace:\n\n__dump_stack lib/dump_stack.c:88 [inline]\ndump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106\nprint_address_description mm/kasan/report.c:364 [inline]\nprint_report+0xc4/0x620 mm/kasan/report.c:475\nkasan_report+0xda/0x110 mm/kasan/report.c:588\nunix_stream_read_actor+0xa7/0xc0 net/unix/af_unix.c:2866\nunix_stream_recv_urg net/unix/af_unix.c:2587 [inline]\nunix_stream_read_generic+0x19a5/0x2480 net/unix/af_unix.c:2666\nunix_stream_recvmsg+0x189/0x1b0 net/unix/af_unix.c:2903\nsock_recvmsg_nosec net/socket.c:1044 [inline]\nsock_recvmsg+0xe2/0x170 net/socket.c:1066\n____sys_recvmsg+0x21f/0x5c0 net/socket.c:2803\n___sys_recvmsg+0x115/0x1a0 net/socket.c:2845\n__sys_recvmsg+0x114/0x1e0 net/socket.c:2875\ndo_syscall_x64 arch/x86/entry/common.c:51 [inline]\ndo_syscall_64+0x3f/0x110 arch/x86/entry/common.c:82\nentry_SYSCALL_64_after_hwframe+0x63/0x6b\nRIP: 0033:0x7fc67492c559\nCode: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48\nRSP: 002b:00007fc6748ab228 EFLAGS: 00000246 ORIG_RAX: 000000000000002f\nRAX: ffffffffffffffda RBX: 000000000000001c RCX: 00007fc67492c559\nRDX: 0000000040010083 RSI: 0000000020000140 RDI: 0000000000000004\nRBP: 00007fc6749b6348 R08: 00007fc6748ab6c0 R09: 00007fc6748ab6c0\nR10: 0000000000000000 R11: 0000000000000246 R12: 00007fc6749b6340\nR13: 00007fc6749b634c R14: 00007ffe9fac52a0 R15: 00007ffe9fac5388\n\n\nAllocated by task 5295:\nkasan_save_stack+0x33/0x50 mm/kasan/common.c:45\nkasan_set_track+0x25/0x30 mm/kasan/common.c:52\n__kasan_slab_alloc+0x81/0x90 mm/kasan/common.c:328\nkasan_slab_alloc include/linux/kasan.h:188 [inline]\nslab_post_alloc_hook mm/slab.h:763 [inline]\nslab_alloc_node mm/slub.c:3478 [inline]\nkmem_cache_alloc_node+0x180/0x3c0 mm/slub.c:3523\n__alloc_skb+0x287/0x330 net/core/skbuff.c:641\nalloc_skb include/linux/skbuff.h:1286 [inline]\nalloc_skb_with_frags+0xe4/0x710 net/core/skbuff.c:6331\nsock_alloc_send_pskb+0x7e4/0x970 net/core/sock.c:2780\nsock_alloc_send_skb include/net/sock.h:1884 [inline]\nqueue_oob net/unix/af_unix.c:2147 [inline]\nunix_stream_sendmsg+0xb5f/0x10a0 net/unix/af_unix.c:2301\nsock_sendmsg_nosec net/socket.c:730 [inline]\n__sock_sendmsg+0xd5/0x180 net/socket.c:745\n____sys_sendmsg+0x6ac/0x940 net/socket.c:2584\n___sys_sendmsg+0x135/0x1d0 net/socket.c:2638\n__sys_sendmsg+0x117/0x1e0 net/socket.c:2667\ndo_syscall_x64 arch/x86/entry/common.c:51 [inline]\ndo_syscall_64+0x3f/0x110 arch/x86/entry/common.c:82\nentry_SYSCALL_64_after_hwframe+0x63/0x6b\n\nFreed by task 5295:\nkasan_save_stack+0x33/0x50 mm/kasan/common.c:45\nkasan_set_track+0x25/0x30 mm/kasan/common.c:52\nkasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:522\n____kasan_slab_free mm/kasan/common.c:236 [inline]\n____kasan_slab_free+0x15b/0x1b0 mm/kasan/common.c:200\nkasan_slab_free include/linux/kasan.h:164 [inline]\nslab_free_hook mm/slub.c:1800 [inline]\nslab_free_freelist_hook+0x114/0x1e0 mm/slub.c:1826\nslab_free mm/slub.c:3809 [inline]\nkmem_cache_free+0xf8/0x340 mm/slub.c:3831\nkfree_skbmem+0xef/0x1b0 net/core/skbuff.c:1015\n__kfree_skb net/core/skbuff.c:1073 [inline]\nconsume_skb net/core/skbuff.c:1288 [inline]\nconsume_skb+0xdf/0x170 net/core/skbuff.c:1282\nqueue_oob net/unix/af_unix.c:2178 [inline]\nu\n---truncated---" } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/unix/af_unix.c" ], "versions": [ { "version": "876c14ad014d", "lessThan": "75bcfc188abf", "status": "affected", "versionType": "git" }, { "version": "876c14ad014d", "lessThan": "d179189eec42", "status": "affected", "versionType": "git" }, { "version": "876c14ad014d", "lessThan": "eae0b295ce16", "status": "affected", "versionType": "git" }, { "version": "876c14ad014d", "lessThan": "069a3ec329ff", "status": "affected", "versionType": "git" }, { "version": "876c14ad014d", "lessThan": "4b7b492615cf", "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/unix/af_unix.c" ], "versions": [ { "version": "5.15", "status": "affected" }, { "version": "0", "lessThan": "5.15", "status": "unaffected", "versionType": "custom" }, { "version": "5.15.140", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.1.64", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.5.13", "lessThanOrEqual": "6.5.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.6.3", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.7", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/75bcfc188abf4fae9c1d5f5dc0a03540be602eef" }, { "url": "https://git.kernel.org/stable/c/d179189eec426fe4801e4b91efa1889faed12700" }, { "url": "https://git.kernel.org/stable/c/eae0b295ce16d8c8b4114c3037993191b4bb92f0" }, { "url": "https://git.kernel.org/stable/c/069a3ec329ff43e7869a3d94c62cd03203016bce" }, { "url": "https://git.kernel.org/stable/c/4b7b492615cf3017190f55444f7016812b66611d" } ], "title": "af_unix: fix use-after-free in unix_stream_read_actor()", "x_generator": { "engine": "bippy-a5840b7849dd" } }, "adp": [ { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T23:11:35.836Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/75bcfc188abf4fae9c1d5f5dc0a03540be602eef", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/d179189eec426fe4801e4b91efa1889faed12700", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/eae0b295ce16d8c8b4114c3037993191b4bb92f0", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/069a3ec329ff43e7869a3d94c62cd03203016bce", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/4b7b492615cf3017190f55444f7016812b66611d", "tags": [ "x_transferred" ] } ] }, { "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2023-52772", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2024-09-10T15:36:59.720971Z" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T17:33:30.543Z" } } ] } }