cve-2022-48839
Vulnerability from cvelistv5
Published
2024-07-16 12:25
Modified
2024-11-04 12:17
Severity ?
EPSS score ?
Summary
net/packet: fix slab-out-of-bounds access in packet_recvmsg()
References
Impacted products
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/packet: fix slab-out-of-bounds access in packet_recvmsg()\n\nsyzbot found that when an AF_PACKET socket is using PACKET_COPY_THRESH\nand mmap operations, tpacket_rcv() is queueing skbs with\ngarbage in skb-\u003ecb[], triggering a too big copy [1]\n\nPresumably, users of af_packet using mmap() already gets correct\nmetadata from the mapped buffer, we can simply make sure\nto clear 12 bytes that might be copied to user space later.\n\nBUG: KASAN: stack-out-of-bounds in memcpy include/linux/fortify-string.h:225 [inline]\nBUG: KASAN: stack-out-of-bounds in packet_recvmsg+0x56c/0x1150 net/packet/af_packet.c:3489\nWrite of size 165 at addr ffffc9000385fb78 by task syz-executor233/3631\n\nCPU: 0 PID: 3631 Comm: syz-executor233 Not tainted 5.17.0-rc7-syzkaller-02396-g0b3660695e80 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011\nCall Trace:\n \u003cTASK\u003e\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106\n print_address_description.constprop.0.cold+0xf/0x336 mm/kasan/report.c:255\n __kasan_report mm/kasan/report.c:442 [inline]\n kasan_report.cold+0x83/0xdf mm/kasan/report.c:459\n check_region_inline mm/kasan/generic.c:183 [inline]\n kasan_check_range+0x13d/0x180 mm/kasan/generic.c:189\n memcpy+0x39/0x60 mm/kasan/shadow.c:66\n memcpy include/linux/fortify-string.h:225 [inline]\n packet_recvmsg+0x56c/0x1150 net/packet/af_packet.c:3489\n sock_recvmsg_nosec net/socket.c:948 [inline]\n sock_recvmsg net/socket.c:966 [inline]\n sock_recvmsg net/socket.c:962 [inline]\n ____sys_recvmsg+0x2c4/0x600 net/socket.c:2632\n ___sys_recvmsg+0x127/0x200 net/socket.c:2674\n __sys_recvmsg+0xe2/0x1a0 net/socket.c:2704\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80\n entry_SYSCALL_64_after_hwframe+0x44/0xae\nRIP: 0033:0x7fdfd5954c29\nCode: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 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 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48\nRSP: 002b:00007ffcf8e71e48 EFLAGS: 00000246 ORIG_RAX: 000000000000002f\nRAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fdfd5954c29\nRDX: 0000000000000000 RSI: 0000000020000500 RDI: 0000000000000005\nRBP: 0000000000000000 R08: 000000000000000d R09: 000000000000000d\nR10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcf8e71e60\nR13: 00000000000f4240 R14: 000000000000c1ff R15: 00007ffcf8e71e54\n \u003c/TASK\u003e\n\naddr ffffc9000385fb78 is located in stack of task syz-executor233/3631 at offset 32 in frame:\n ____sys_recvmsg+0x0/0x600 include/linux/uio.h:246\n\nthis frame has 1 object:\n [32, 160) \u0027addr\u0027\n\nMemory state around the buggy address:\n ffffc9000385fa80: 00 04 f3 f3 f3 f3 f3 00 00 00 00 00 00 00 00 00\n ffffc9000385fb00: 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00\n\u003effffc9000385fb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f3\n ^\n ffffc9000385fc00: f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1\n ffffc9000385fc80: f1 f1 f1 00 f2 f2 f2 00 f2 f2 f2 00 00 00 00 00\n=================================================================="
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"title": "net/packet: fix slab-out-of-bounds access in packet_recvmsg()",
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"datePublished": "2024-07-16T12:25:10.521Z",
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"dateUpdated": "2024-11-04T12:17:35.271Z",
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"nvd": "{\"cve\":{\"id\":\"CVE-2022-48839\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-07-16T13:15:11.353\",\"lastModified\":\"2024-11-21T07:34:11.183\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet/packet: fix slab-out-of-bounds access in packet_recvmsg()\\n\\nsyzbot found that when an AF_PACKET socket is using PACKET_COPY_THRESH\\nand mmap operations, tpacket_rcv() is queueing skbs with\\ngarbage in skb-\u003ecb[], triggering a too big copy [1]\\n\\nPresumably, users of af_packet using mmap() already gets correct\\nmetadata from the mapped buffer, we can simply make sure\\nto clear 12 bytes that might be copied to user space later.\\n\\nBUG: KASAN: stack-out-of-bounds in memcpy include/linux/fortify-string.h:225 [inline]\\nBUG: KASAN: stack-out-of-bounds in packet_recvmsg+0x56c/0x1150 net/packet/af_packet.c:3489\\nWrite of size 165 at addr ffffc9000385fb78 by task syz-executor233/3631\\n\\nCPU: 0 PID: 3631 Comm: syz-executor233 Not tainted 5.17.0-rc7-syzkaller-02396-g0b3660695e80 #0\\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011\\nCall Trace:\\n \u003cTASK\u003e\\n __dump_stack lib/dump_stack.c:88 [inline]\\n dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106\\n print_address_description.constprop.0.cold+0xf/0x336 mm/kasan/report.c:255\\n __kasan_report mm/kasan/report.c:442 [inline]\\n kasan_report.cold+0x83/0xdf mm/kasan/report.c:459\\n check_region_inline mm/kasan/generic.c:183 [inline]\\n kasan_check_range+0x13d/0x180 mm/kasan/generic.c:189\\n memcpy+0x39/0x60 mm/kasan/shadow.c:66\\n memcpy include/linux/fortify-string.h:225 [inline]\\n packet_recvmsg+0x56c/0x1150 net/packet/af_packet.c:3489\\n sock_recvmsg_nosec net/socket.c:948 [inline]\\n sock_recvmsg net/socket.c:966 [inline]\\n sock_recvmsg net/socket.c:962 [inline]\\n ____sys_recvmsg+0x2c4/0x600 net/socket.c:2632\\n ___sys_recvmsg+0x127/0x200 net/socket.c:2674\\n __sys_recvmsg+0xe2/0x1a0 net/socket.c:2704\\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\\n do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80\\n entry_SYSCALL_64_after_hwframe+0x44/0xae\\nRIP: 0033:0x7fdfd5954c29\\nCode: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 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 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48\\nRSP: 002b:00007ffcf8e71e48 EFLAGS: 00000246 ORIG_RAX: 000000000000002f\\nRAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fdfd5954c29\\nRDX: 0000000000000000 RSI: 0000000020000500 RDI: 0000000000000005\\nRBP: 0000000000000000 R08: 000000000000000d R09: 000000000000000d\\nR10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcf8e71e60\\nR13: 00000000000f4240 R14: 000000000000c1ff R15: 00007ffcf8e71e54\\n \u003c/TASK\u003e\\n\\naddr ffffc9000385fb78 is located in stack of task syz-executor233/3631 at offset 32 in frame:\\n ____sys_recvmsg+0x0/0x600 include/linux/uio.h:246\\n\\nthis frame has 1 object:\\n [32, 160) \u0027addr\u0027\\n\\nMemory state around the buggy address:\\n ffffc9000385fa80: 00 04 f3 f3 f3 f3 f3 00 00 00 00 00 00 00 00 00\\n ffffc9000385fb00: 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00\\n\u003effffc9000385fb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f3\\n ^\\n ffffc9000385fc00: f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1\\n ffffc9000385fc80: f1 f1 f1 00 f2 f2 f2 00 f2 f2 f2 00 00 00 00 00\\n==================================================================\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net/packet: corrige el acceso slab-out-of-bounds en paquete_recvmsg() syzbot descubri\u00f3 que cuando un socket AF_PACKET utiliza operaciones PACKET_COPY_THRESH y mmap, tpacket_rcv() est\u00e1 poniendo en cola skbs con basura en skb-\u0026gt;cb[], lo que desencadena una copia demasiado grande [1] Presumiblemente, los usuarios de af_packet que usan mmap() ya obtienen los metadatos correctos del b\u00fafer asignado, simplemente podemos asegurarnos de borrar 12 bytes que podr\u00edan copiarse al usuario espacio m\u00e1s tarde. ERROR: KASAN: pila fuera de los l\u00edmites en memcpy include/linux/fortify-string.h:225 [en l\u00ednea] ERROR: KASAN: pila fuera de los l\u00edmites en paquete_recvmsg+0x56c/0x1150 net/packet/af_packet. c:3489 Escritura de tama\u00f1o 165 en la direcci\u00f3n ffffc9000385fb78 por tarea syz-executor233/3631 CPU: 0 PID: 3631 Comm: syz-executor233 Not tainted 5.17.0-rc7-syzkaller-02396-g0b3660695e80 #0 Nombre de hardware: Google Google Compute Engine /Google Compute Engine, BIOS Google 01/01/2011 Seguimiento de llamadas: __dump_stack lib/dump_stack.c:88 [en l\u00ednea] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 print_address_description.constprop.0.cold+0xf /0x336 mm/kasan/report.c:255 __kasan_report mm/kasan/report.c:442 [en l\u00ednea] kasan_report.cold+0x83/0xdf mm/kasan/report.c:459 check_region_inline mm/kasan/generic.c:183 [en l\u00ednea] kasan_check_range+0x13d/0x180 mm/kasan/generic.c:189 memcpy+0x39/0x60 mm/kasan/shadow.c:66 memcpy include/linux/fortify-string.h:225 [en l\u00ednea] paquete_recvmsg+0x56c/ 0x1150 net/packet/af_packet.c:3489 sock_recvmsg_nosec net/socket.c:948 [en l\u00ednea] sock_recvmsg net/socket.c:966 [en l\u00ednea] sock_recvmsg net/socket.c:962 [en l\u00ednea] ____sys_recvmsg+0x2c4/0x600 net/ socket.c:2632 ___sys_recvmsg+0x127/0x200 net/socket.c:2674 __sys_recvmsg+0xe2/0x1a0 net/socket.c:2704 do_syscall_x64 arch/x86/entry/common.c:50 [en l\u00ednea] arco xb0 /x86/entry/common.c:80 Entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fdfd5954c29 C\u00f3digo: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 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 \u0026lt;48\u0026gt; 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffcf8e71e48 EFLAGS: 0000246 ORIG_RAX: 000000000000002f RAX : ffffffffffffffda RBX: 0000000000000003 RCX: 00007fdfd5954c29 RDX: 0000000000000000 RSI: 0000000020000500 RDI: 000000000000005 RBP: 0000000 000000000 R08: 000000000000000d R09: 000000000000000d R10: 0000000000000000 R11: 00000000000000246 R12: 00007ffcf8e71e60 R13: 0000f4240 R14: 000000000000c1ff R15: 00007ffcf8e71e54 direcci\u00f3n ffffc9000385fb78 est\u00e1 ubicado en la pila de la tarea syz-executor233/3631 en el desplazamiento 32 en el marco: ____sys_recvmsg+0x0/0x600 include/linux/uio.h:246 este marco tiene 1 objeto: [32, 160) \u0027addr\u0027 Estado de memoria alrededor del buggy direcci\u00f3n: ffffc9000385fa80: 00 04 f3 f3 f3 f3 f3 00 00 00 00 00 00 00 00 00 ffffc9000385fb00: 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 c9000385fb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f3 ^ ffffc9000385fc00: f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 ffffc9000385fc80: f1 f1 f1 00 f2 f2 f2 00 f2 f2 f2 0 0 00 00 00 00 ====== ==================================================== ==========\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-125\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"2.6.14\",\"versionEndExcluding\":\"4.9.308\",\"matchCriteriaId\":\"661D636E-06A1-4E3D-A282-F625B52C2A61\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.10\",\"versionEndExcluding\":\"4.14.273\",\"matchCriteriaId\":\"A1E9CE4F-B0EA-4F88-9562-4F113E598085\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.15\",\"versionEndExcluding\":\"4.19.236\",\"matchCriteriaId\":\"09979837-E01F-4E28-B943-9F680CA3D278\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.187\",\"matchCriteriaId\":\"D9FFB805-4ED2-4FAE-9EF4-8AB4BC9D8F5C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.108\",\"matchCriteriaId\":\"24925527-AC4A-4594-8D6C-3B34D31862C5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.31\",\"matchCriteriaId\":\"F25C317E-A673-47D1-844E-171C9BFDF352\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"5.16.17\",\"matchCriteriaId\":\"DC9A634D-C617-4F8C-ADEF-AF94CE69D687\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/268dcf1f7b3193bc446ec3d14e08a240e9561e4d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Mailing 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}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.