CVE-2022-48956 (GCVE-0-2022-48956)

Vulnerability from cvelistv5 – Published: 2024-10-21 20:05 – Updated: 2025-05-04 08:26
VLAI?
Title
ipv6: avoid use-after-free in ip6_fragment()
Summary
In the Linux kernel, the following vulnerability has been resolved: ipv6: avoid use-after-free in ip6_fragment() Blamed commit claimed rcu_read_lock() was held by ip6_fragment() callers. It seems to not be always true, at least for UDP stack. syzbot reported: BUG: KASAN: use-after-free in ip6_dst_idev include/net/ip6_fib.h:245 [inline] BUG: KASAN: use-after-free in ip6_fragment+0x2724/0x2770 net/ipv6/ip6_output.c:951 Read of size 8 at addr ffff88801d403e80 by task syz-executor.3/7618 CPU: 1 PID: 7618 Comm: syz-executor.3 Not tainted 6.1.0-rc6-syzkaller-00012-g4312098baf37 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd1/0x138 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:284 [inline] print_report+0x15e/0x45d mm/kasan/report.c:395 kasan_report+0xbf/0x1f0 mm/kasan/report.c:495 ip6_dst_idev include/net/ip6_fib.h:245 [inline] ip6_fragment+0x2724/0x2770 net/ipv6/ip6_output.c:951 __ip6_finish_output net/ipv6/ip6_output.c:193 [inline] ip6_finish_output+0x9a3/0x1170 net/ipv6/ip6_output.c:206 NF_HOOK_COND include/linux/netfilter.h:291 [inline] ip6_output+0x1f1/0x540 net/ipv6/ip6_output.c:227 dst_output include/net/dst.h:445 [inline] ip6_local_out+0xb3/0x1a0 net/ipv6/output_core.c:161 ip6_send_skb+0xbb/0x340 net/ipv6/ip6_output.c:1966 udp_v6_send_skb+0x82a/0x18a0 net/ipv6/udp.c:1286 udp_v6_push_pending_frames+0x140/0x200 net/ipv6/udp.c:1313 udpv6_sendmsg+0x18da/0x2c80 net/ipv6/udp.c:1606 inet6_sendmsg+0x9d/0xe0 net/ipv6/af_inet6.c:665 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg+0xd3/0x120 net/socket.c:734 sock_write_iter+0x295/0x3d0 net/socket.c:1108 call_write_iter include/linux/fs.h:2191 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x9ed/0xdd0 fs/read_write.c:584 ksys_write+0x1ec/0x250 fs/read_write.c:637 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fde3588c0d9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fde365b6168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fde359ac050 RCX: 00007fde3588c0d9 RDX: 000000000000ffdc RSI: 00000000200000c0 RDI: 000000000000000a RBP: 00007fde358e7ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fde35acfb1f R14: 00007fde365b6300 R15: 0000000000022000 </TASK> Allocated by task 7618: kasan_save_stack+0x22/0x40 mm/kasan/common.c:45 kasan_set_track+0x25/0x30 mm/kasan/common.c:52 __kasan_slab_alloc+0x82/0x90 mm/kasan/common.c:325 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook mm/slab.h:737 [inline] slab_alloc_node mm/slub.c:3398 [inline] slab_alloc mm/slub.c:3406 [inline] __kmem_cache_alloc_lru mm/slub.c:3413 [inline] kmem_cache_alloc+0x2b4/0x3d0 mm/slub.c:3422 dst_alloc+0x14a/0x1f0 net/core/dst.c:92 ip6_dst_alloc+0x32/0xa0 net/ipv6/route.c:344 ip6_rt_pcpu_alloc net/ipv6/route.c:1369 [inline] rt6_make_pcpu_route net/ipv6/route.c:1417 [inline] ip6_pol_route+0x901/0x1190 net/ipv6/route.c:2254 pol_lookup_func include/net/ip6_fib.h:582 [inline] fib6_rule_lookup+0x52e/0x6f0 net/ipv6/fib6_rules.c:121 ip6_route_output_flags_noref+0x2e6/0x380 net/ipv6/route.c:2625 ip6_route_output_flags+0x76/0x320 net/ipv6/route.c:2638 ip6_route_output include/net/ip6_route.h:98 [inline] ip6_dst_lookup_tail+0x5ab/0x1620 net/ipv6/ip6_output.c:1092 ip6_dst_lookup_flow+0x90/0x1d0 net/ipv6/ip6_output.c:1222 ip6_sk_dst_lookup_flow+0x553/0x980 net/ipv6/ip6_output.c:1260 udpv6_sendmsg+0x151d/0x2c80 net/ipv6/udp.c:1554 inet6_sendmsg+0x9d/0xe0 net/ipv6/af_inet6.c:665 sock_sendmsg_nosec n ---truncated---
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 1758fd4688eb92c796e75bdb1d256dc558ef9581 , < b3d7ff8c04a83279fb7641fc4d5aa82a602df7c0 (git)
Affected: 1758fd4688eb92c796e75bdb1d256dc558ef9581 , < 7e0dcd5f3ade221a6126278aca60c8ab4cc3bce9 (git)
Affected: 1758fd4688eb92c796e75bdb1d256dc558ef9581 , < 6b6d3be3661bff2746cab26147bd629aa034e094 (git)
Affected: 1758fd4688eb92c796e75bdb1d256dc558ef9581 , < 8208d7e56b1e579320b9ff3712739ad2e63e1f86 (git)
Affected: 1758fd4688eb92c796e75bdb1d256dc558ef9581 , < 7390c70bd431cbfa6951477e2c80a301643e284b (git)
Affected: 1758fd4688eb92c796e75bdb1d256dc558ef9581 , < 9b1a468a455d8319041528778d0e684a4c062792 (git)
Affected: 1758fd4688eb92c796e75bdb1d256dc558ef9581 , < 803e84867de59a1e5d126666d25eb4860cfd2ebe (git)
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    Linux Linux Affected: 4.13
Unaffected: 0 , < 4.13 (semver)
Unaffected: 4.14.302 , ≤ 4.14.* (semver)
Unaffected: 4.19.269 , ≤ 4.19.* (semver)
Unaffected: 5.4.227 , ≤ 5.4.* (semver)
Unaffected: 5.10.159 , ≤ 5.10.* (semver)
Unaffected: 5.15.83 , ≤ 5.15.* (semver)
Unaffected: 6.0.13 , ≤ 6.0.* (semver)
Unaffected: 6.1 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: avoid use-after-free in ip6_fragment()\n\nBlamed commit claimed rcu_read_lock() was held by ip6_fragment() callers.\n\nIt seems to not be always true, at least for UDP stack.\n\nsyzbot reported:\n\nBUG: KASAN: use-after-free in ip6_dst_idev include/net/ip6_fib.h:245 [inline]\nBUG: KASAN: use-after-free in ip6_fragment+0x2724/0x2770 net/ipv6/ip6_output.c:951\nRead of size 8 at addr ffff88801d403e80 by task syz-executor.3/7618\n\nCPU: 1 PID: 7618 Comm: syz-executor.3 Not tainted 6.1.0-rc6-syzkaller-00012-g4312098baf37 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022\nCall Trace:\n \u003cTASK\u003e\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0xd1/0x138 lib/dump_stack.c:106\n print_address_description mm/kasan/report.c:284 [inline]\n print_report+0x15e/0x45d mm/kasan/report.c:395\n kasan_report+0xbf/0x1f0 mm/kasan/report.c:495\n ip6_dst_idev include/net/ip6_fib.h:245 [inline]\n ip6_fragment+0x2724/0x2770 net/ipv6/ip6_output.c:951\n __ip6_finish_output net/ipv6/ip6_output.c:193 [inline]\n ip6_finish_output+0x9a3/0x1170 net/ipv6/ip6_output.c:206\n NF_HOOK_COND include/linux/netfilter.h:291 [inline]\n ip6_output+0x1f1/0x540 net/ipv6/ip6_output.c:227\n dst_output include/net/dst.h:445 [inline]\n ip6_local_out+0xb3/0x1a0 net/ipv6/output_core.c:161\n ip6_send_skb+0xbb/0x340 net/ipv6/ip6_output.c:1966\n udp_v6_send_skb+0x82a/0x18a0 net/ipv6/udp.c:1286\n udp_v6_push_pending_frames+0x140/0x200 net/ipv6/udp.c:1313\n udpv6_sendmsg+0x18da/0x2c80 net/ipv6/udp.c:1606\n inet6_sendmsg+0x9d/0xe0 net/ipv6/af_inet6.c:665\n sock_sendmsg_nosec net/socket.c:714 [inline]\n sock_sendmsg+0xd3/0x120 net/socket.c:734\n sock_write_iter+0x295/0x3d0 net/socket.c:1108\n call_write_iter include/linux/fs.h:2191 [inline]\n new_sync_write fs/read_write.c:491 [inline]\n vfs_write+0x9ed/0xdd0 fs/read_write.c:584\n ksys_write+0x1ec/0x250 fs/read_write.c:637\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\nRIP: 0033:0x7fde3588c0d9\nCode: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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 b8 ff ff ff f7 d8 64 89 01 48\nRSP: 002b:00007fde365b6168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001\nRAX: ffffffffffffffda RBX: 00007fde359ac050 RCX: 00007fde3588c0d9\nRDX: 000000000000ffdc RSI: 00000000200000c0 RDI: 000000000000000a\nRBP: 00007fde358e7ae9 R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\nR13: 00007fde35acfb1f R14: 00007fde365b6300 R15: 0000000000022000\n \u003c/TASK\u003e\n\nAllocated by task 7618:\n kasan_save_stack+0x22/0x40 mm/kasan/common.c:45\n kasan_set_track+0x25/0x30 mm/kasan/common.c:52\n __kasan_slab_alloc+0x82/0x90 mm/kasan/common.c:325\n kasan_slab_alloc include/linux/kasan.h:201 [inline]\n slab_post_alloc_hook mm/slab.h:737 [inline]\n slab_alloc_node mm/slub.c:3398 [inline]\n slab_alloc mm/slub.c:3406 [inline]\n __kmem_cache_alloc_lru mm/slub.c:3413 [inline]\n kmem_cache_alloc+0x2b4/0x3d0 mm/slub.c:3422\n dst_alloc+0x14a/0x1f0 net/core/dst.c:92\n ip6_dst_alloc+0x32/0xa0 net/ipv6/route.c:344\n ip6_rt_pcpu_alloc net/ipv6/route.c:1369 [inline]\n rt6_make_pcpu_route net/ipv6/route.c:1417 [inline]\n ip6_pol_route+0x901/0x1190 net/ipv6/route.c:2254\n pol_lookup_func include/net/ip6_fib.h:582 [inline]\n fib6_rule_lookup+0x52e/0x6f0 net/ipv6/fib6_rules.c:121\n ip6_route_output_flags_noref+0x2e6/0x380 net/ipv6/route.c:2625\n ip6_route_output_flags+0x76/0x320 net/ipv6/route.c:2638\n ip6_route_output include/net/ip6_route.h:98 [inline]\n ip6_dst_lookup_tail+0x5ab/0x1620 net/ipv6/ip6_output.c:1092\n ip6_dst_lookup_flow+0x90/0x1d0 net/ipv6/ip6_output.c:1222\n ip6_sk_dst_lookup_flow+0x553/0x980 net/ipv6/ip6_output.c:1260\n udpv6_sendmsg+0x151d/0x2c80 net/ipv6/udp.c:1554\n inet6_sendmsg+0x9d/0xe0 net/ipv6/af_inet6.c:665\n sock_sendmsg_nosec n\n---truncated---"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T08:26:53.995Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "references": [
        {
          "url": "https://git.kernel.org/stable/c/b3d7ff8c04a83279fb7641fc4d5aa82a602df7c0"
        },
        {
          "url": "https://git.kernel.org/stable/c/7e0dcd5f3ade221a6126278aca60c8ab4cc3bce9"
        },
        {
          "url": "https://git.kernel.org/stable/c/6b6d3be3661bff2746cab26147bd629aa034e094"
        },
        {
          "url": "https://git.kernel.org/stable/c/8208d7e56b1e579320b9ff3712739ad2e63e1f86"
        },
        {
          "url": "https://git.kernel.org/stable/c/7390c70bd431cbfa6951477e2c80a301643e284b"
        },
        {
          "url": "https://git.kernel.org/stable/c/9b1a468a455d8319041528778d0e684a4c062792"
        },
        {
          "url": "https://git.kernel.org/stable/c/803e84867de59a1e5d126666d25eb4860cfd2ebe"
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      ],
      "title": "ipv6: avoid use-after-free in ip6_fragment()",
      "x_generator": {
        "engine": "bippy-1.2.0"
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    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-48956",
    "datePublished": "2024-10-21T20:05:42.379Z",
    "dateReserved": "2024-08-22T01:27:53.627Z",
    "dateUpdated": "2025-05-04T08:26:53.995Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2022-48956\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-10-22T13:21:00.418896Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-10-22T13:21:03.502Z\"}}], \"cna\": {\"title\": \"ipv6: avoid use-after-free in ip6_fragment()\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"1758fd4688eb92c796e75bdb1d256dc558ef9581\", \"lessThan\": \"b3d7ff8c04a83279fb7641fc4d5aa82a602df7c0\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1758fd4688eb92c796e75bdb1d256dc558ef9581\", \"lessThan\": \"7e0dcd5f3ade221a6126278aca60c8ab4cc3bce9\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1758fd4688eb92c796e75bdb1d256dc558ef9581\", \"lessThan\": \"6b6d3be3661bff2746cab26147bd629aa034e094\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1758fd4688eb92c796e75bdb1d256dc558ef9581\", \"lessThan\": \"8208d7e56b1e579320b9ff3712739ad2e63e1f86\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1758fd4688eb92c796e75bdb1d256dc558ef9581\", \"lessThan\": \"7390c70bd431cbfa6951477e2c80a301643e284b\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1758fd4688eb92c796e75bdb1d256dc558ef9581\", \"lessThan\": \"9b1a468a455d8319041528778d0e684a4c062792\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1758fd4688eb92c796e75bdb1d256dc558ef9581\", \"lessThan\": \"803e84867de59a1e5d126666d25eb4860cfd2ebe\", \"versionType\": \"git\"}], \"programFiles\": [\"net/ipv6/ip6_output.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.13\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"4.13\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.14.302\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.14.*\"}, {\"status\": \"unaffected\", \"version\": \"4.19.269\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.227\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.159\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.83\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.0.13\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.0.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/ipv6/ip6_output.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/b3d7ff8c04a83279fb7641fc4d5aa82a602df7c0\"}, {\"url\": \"https://git.kernel.org/stable/c/7e0dcd5f3ade221a6126278aca60c8ab4cc3bce9\"}, {\"url\": \"https://git.kernel.org/stable/c/6b6d3be3661bff2746cab26147bd629aa034e094\"}, {\"url\": \"https://git.kernel.org/stable/c/8208d7e56b1e579320b9ff3712739ad2e63e1f86\"}, {\"url\": \"https://git.kernel.org/stable/c/7390c70bd431cbfa6951477e2c80a301643e284b\"}, {\"url\": \"https://git.kernel.org/stable/c/9b1a468a455d8319041528778d0e684a4c062792\"}, {\"url\": \"https://git.kernel.org/stable/c/803e84867de59a1e5d126666d25eb4860cfd2ebe\"}], \"x_generator\": {\"engine\": \"bippy-5f407fcff5a0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nipv6: avoid use-after-free in ip6_fragment()\\n\\nBlamed commit claimed rcu_read_lock() was held by ip6_fragment() callers.\\n\\nIt seems to not be always true, at least for UDP stack.\\n\\nsyzbot reported:\\n\\nBUG: KASAN: use-after-free in ip6_dst_idev include/net/ip6_fib.h:245 [inline]\\nBUG: KASAN: use-after-free in ip6_fragment+0x2724/0x2770 net/ipv6/ip6_output.c:951\\nRead of size 8 at addr ffff88801d403e80 by task syz-executor.3/7618\\n\\nCPU: 1 PID: 7618 Comm: syz-executor.3 Not tainted 6.1.0-rc6-syzkaller-00012-g4312098baf37 #0\\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022\\nCall Trace:\\n \u003cTASK\u003e\\n __dump_stack lib/dump_stack.c:88 [inline]\\n dump_stack_lvl+0xd1/0x138 lib/dump_stack.c:106\\n print_address_description mm/kasan/report.c:284 [inline]\\n print_report+0x15e/0x45d mm/kasan/report.c:395\\n kasan_report+0xbf/0x1f0 mm/kasan/report.c:495\\n ip6_dst_idev include/net/ip6_fib.h:245 [inline]\\n ip6_fragment+0x2724/0x2770 net/ipv6/ip6_output.c:951\\n __ip6_finish_output net/ipv6/ip6_output.c:193 [inline]\\n ip6_finish_output+0x9a3/0x1170 net/ipv6/ip6_output.c:206\\n NF_HOOK_COND include/linux/netfilter.h:291 [inline]\\n ip6_output+0x1f1/0x540 net/ipv6/ip6_output.c:227\\n dst_output include/net/dst.h:445 [inline]\\n ip6_local_out+0xb3/0x1a0 net/ipv6/output_core.c:161\\n ip6_send_skb+0xbb/0x340 net/ipv6/ip6_output.c:1966\\n udp_v6_send_skb+0x82a/0x18a0 net/ipv6/udp.c:1286\\n udp_v6_push_pending_frames+0x140/0x200 net/ipv6/udp.c:1313\\n udpv6_sendmsg+0x18da/0x2c80 net/ipv6/udp.c:1606\\n inet6_sendmsg+0x9d/0xe0 net/ipv6/af_inet6.c:665\\n sock_sendmsg_nosec net/socket.c:714 [inline]\\n sock_sendmsg+0xd3/0x120 net/socket.c:734\\n sock_write_iter+0x295/0x3d0 net/socket.c:1108\\n call_write_iter include/linux/fs.h:2191 [inline]\\n new_sync_write fs/read_write.c:491 [inline]\\n vfs_write+0x9ed/0xdd0 fs/read_write.c:584\\n ksys_write+0x1ec/0x250 fs/read_write.c:637\\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\\n do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80\\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\\nRIP: 0033:0x7fde3588c0d9\\nCode: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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 b8 ff ff ff f7 d8 64 89 01 48\\nRSP: 002b:00007fde365b6168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001\\nRAX: ffffffffffffffda RBX: 00007fde359ac050 RCX: 00007fde3588c0d9\\nRDX: 000000000000ffdc RSI: 00000000200000c0 RDI: 000000000000000a\\nRBP: 00007fde358e7ae9 R08: 0000000000000000 R09: 0000000000000000\\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\\nR13: 00007fde35acfb1f R14: 00007fde365b6300 R15: 0000000000022000\\n \u003c/TASK\u003e\\n\\nAllocated by task 7618:\\n kasan_save_stack+0x22/0x40 mm/kasan/common.c:45\\n kasan_set_track+0x25/0x30 mm/kasan/common.c:52\\n __kasan_slab_alloc+0x82/0x90 mm/kasan/common.c:325\\n kasan_slab_alloc include/linux/kasan.h:201 [inline]\\n slab_post_alloc_hook mm/slab.h:737 [inline]\\n slab_alloc_node mm/slub.c:3398 [inline]\\n slab_alloc mm/slub.c:3406 [inline]\\n __kmem_cache_alloc_lru mm/slub.c:3413 [inline]\\n kmem_cache_alloc+0x2b4/0x3d0 mm/slub.c:3422\\n dst_alloc+0x14a/0x1f0 net/core/dst.c:92\\n ip6_dst_alloc+0x32/0xa0 net/ipv6/route.c:344\\n ip6_rt_pcpu_alloc net/ipv6/route.c:1369 [inline]\\n rt6_make_pcpu_route net/ipv6/route.c:1417 [inline]\\n ip6_pol_route+0x901/0x1190 net/ipv6/route.c:2254\\n pol_lookup_func include/net/ip6_fib.h:582 [inline]\\n fib6_rule_lookup+0x52e/0x6f0 net/ipv6/fib6_rules.c:121\\n ip6_route_output_flags_noref+0x2e6/0x380 net/ipv6/route.c:2625\\n ip6_route_output_flags+0x76/0x320 net/ipv6/route.c:2638\\n ip6_route_output include/net/ip6_route.h:98 [inline]\\n ip6_dst_lookup_tail+0x5ab/0x1620 net/ipv6/ip6_output.c:1092\\n ip6_dst_lookup_flow+0x90/0x1d0 net/ipv6/ip6_output.c:1222\\n ip6_sk_dst_lookup_flow+0x553/0x980 net/ipv6/ip6_output.c:1260\\n udpv6_sendmsg+0x151d/0x2c80 net/ipv6/udp.c:1554\\n inet6_sendmsg+0x9d/0xe0 net/ipv6/af_inet6.c:665\\n sock_sendmsg_nosec n\\n---truncated---\"}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2024-12-19T08:11:13.964Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-48956\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-12-19T08:11:13.964Z\", \"dateReserved\": \"2024-08-22T01:27:53.627Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-10-21T20:05:42.379Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Sightings

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.