cve-2024-40961
Vulnerability from cvelistv5
Published
2024-07-12 12:32
Modified
2024-11-05 09:34
Severity ?
Summary
ipv6: prevent possible NULL deref in fib6_nh_init()
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website


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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: prevent possible NULL deref in fib6_nh_init()\n\nsyzbot reminds us that in6_dev_get() can return NULL.\n\nfib6_nh_init()\n    ip6_validate_gw(  \u0026idev  )\n        ip6_route_check_nh(  idev  )\n            *idev = in6_dev_get(dev); // can be NULL\n\nOops: general protection fault, probably for non-canonical address 0xdffffc00000000bc: 0000 [#1] PREEMPT SMP KASAN PTI\nKASAN: null-ptr-deref in range [0x00000000000005e0-0x00000000000005e7]\nCPU: 0 PID: 11237 Comm: syz-executor.3 Not tainted 6.10.0-rc2-syzkaller-00249-gbe27b8965297 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024\n RIP: 0010:fib6_nh_init+0x640/0x2160 net/ipv6/route.c:3606\nCode: 00 00 fc ff df 4c 8b 64 24 58 48 8b 44 24 28 4c 8b 74 24 30 48 89 c1 48 89 44 24 28 48 8d 98 e0 05 00 00 48 89 d8 48 c1 e8 03 \u003c42\u003e 0f b6 04 38 84 c0 0f 85 b3 17 00 00 8b 1b 31 ff 89 de e8 b8 8b\nRSP: 0018:ffffc900032775a0 EFLAGS: 00010202\nRAX: 00000000000000bc RBX: 00000000000005e0 RCX: 0000000000000000\nRDX: 0000000000000010 RSI: ffffc90003277a54 RDI: ffff88802b3a08d8\nRBP: ffffc900032778b0 R08: 00000000000002fc R09: 0000000000000000\nR10: 00000000000002fc R11: 0000000000000000 R12: ffff88802b3a08b8\nR13: 1ffff9200064eec8 R14: ffffc90003277a00 R15: dffffc0000000000\nFS:  00007f940feb06c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000000000000000 CR3: 00000000245e8000 CR4: 00000000003506f0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n \u003cTASK\u003e\n  ip6_route_info_create+0x99e/0x12b0 net/ipv6/route.c:3809\n  ip6_route_add+0x28/0x160 net/ipv6/route.c:3853\n  ipv6_route_ioctl+0x588/0x870 net/ipv6/route.c:4483\n  inet6_ioctl+0x21a/0x280 net/ipv6/af_inet6.c:579\n  sock_do_ioctl+0x158/0x460 net/socket.c:1222\n  sock_ioctl+0x629/0x8e0 net/socket.c:1341\n  vfs_ioctl fs/ioctl.c:51 [inline]\n  __do_sys_ioctl fs/ioctl.c:907 [inline]\n  __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:893\n  do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n  do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\nRIP: 0033:0x7f940f07cea9"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2024-40961",
    "datePublished": "2024-07-12T12:32:02.654Z",
    "dateReserved": "2024-07-12T12:17:45.594Z",
    "dateUpdated": "2024-11-05T09:34:00.172Z",
    "state": "PUBLISHED"
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    "nvd": "{\"cve\":{\"id\":\"CVE-2024-40961\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-07-12T13:15:18.110\",\"lastModified\":\"2024-08-21T16:54:20.817\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nipv6: prevent possible NULL deref in fib6_nh_init()\\n\\nsyzbot reminds us that in6_dev_get() can return NULL.\\n\\nfib6_nh_init()\\n    ip6_validate_gw(  \u0026idev  )\\n        ip6_route_check_nh(  idev  )\\n            *idev = in6_dev_get(dev); // can be NULL\\n\\nOops: general protection fault, probably for non-canonical address 0xdffffc00000000bc: 0000 [#1] PREEMPT SMP KASAN PTI\\nKASAN: null-ptr-deref in range [0x00000000000005e0-0x00000000000005e7]\\nCPU: 0 PID: 11237 Comm: syz-executor.3 Not tainted 6.10.0-rc2-syzkaller-00249-gbe27b8965297 #0\\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024\\n RIP: 0010:fib6_nh_init+0x640/0x2160 net/ipv6/route.c:3606\\nCode: 00 00 fc ff df 4c 8b 64 24 58 48 8b 44 24 28 4c 8b 74 24 30 48 89 c1 48 89 44 24 28 48 8d 98 e0 05 00 00 48 89 d8 48 c1 e8 03 \u003c42\u003e 0f b6 04 38 84 c0 0f 85 b3 17 00 00 8b 1b 31 ff 89 de e8 b8 8b\\nRSP: 0018:ffffc900032775a0 EFLAGS: 00010202\\nRAX: 00000000000000bc RBX: 00000000000005e0 RCX: 0000000000000000\\nRDX: 0000000000000010 RSI: ffffc90003277a54 RDI: ffff88802b3a08d8\\nRBP: ffffc900032778b0 R08: 00000000000002fc R09: 0000000000000000\\nR10: 00000000000002fc R11: 0000000000000000 R12: ffff88802b3a08b8\\nR13: 1ffff9200064eec8 R14: ffffc90003277a00 R15: dffffc0000000000\\nFS:  00007f940feb06c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000\\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\nCR2: 0000000000000000 CR3: 00000000245e8000 CR4: 00000000003506f0\\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\\nCall Trace:\\n \u003cTASK\u003e\\n  ip6_route_info_create+0x99e/0x12b0 net/ipv6/route.c:3809\\n  ip6_route_add+0x28/0x160 net/ipv6/route.c:3853\\n  ipv6_route_ioctl+0x588/0x870 net/ipv6/route.c:4483\\n  inet6_ioctl+0x21a/0x280 net/ipv6/af_inet6.c:579\\n  sock_do_ioctl+0x158/0x460 net/socket.c:1222\\n  sock_ioctl+0x629/0x8e0 net/socket.c:1341\\n  vfs_ioctl fs/ioctl.c:51 [inline]\\n  __do_sys_ioctl fs/ioctl.c:907 [inline]\\n  __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:893\\n  do_syscall_x64 arch/x86/entry/common.c:52 [inline]\\n  do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83\\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\\nRIP: 0033:0x7f940f07cea9\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux se ha resuelto la siguiente vulnerabilidad: ipv6: previene posible deref NULL en fib6_nh_init() syzbot nos recuerda que in6_dev_get() puede devolver NULL. fib6_nh_init() ip6_validate_gw( \u0026amp;idev ) ip6_route_check_nh( idev ) *idev = in6_dev_get(dev); // puede ser NULL Ups: falla de protecci\u00f3n general, probablemente para direcci\u00f3n no can\u00f3nica 0xdffffc00000000bc: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x00000000000005e0-0x00000000000005e7] CPU: 0 PID: 11237 Co mil\u00edmetros: syz-executor.3 No est\u00e1 contaminado 6.10.0-rc2-syzkaller-00249-gbe27b8965297 #0 Nombre del hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/06/2024 RIP: 0010:fib6_nh_init+0x640/0x2160 net/ ipv6/route.c:3606 C\u00f3digo: 00 00 fc ff df 4c 8b 64 24 58 48 8b 44 24 28 4c 8b 74 24 30 48 89 c1 48 89 44 24 28 48 8d 98 e0 05 00 00 48 89 8 48 c1 e8 03 \u0026lt;42\u0026gt; 0f b6 04 38 84 c0 0f 85 b3 17 00 00 8b 1b 31 ff 89 de e8 b8 8b RSP: 0018:ffffc900032775a0 EFLAGS: 00010202 RAX: 00000000000000bc RBX: 00000000000005e0 RCX: 0000000000000000 RDX: 0000000000000010 RSI: ffffc90003277a54 RDI: ffff88802b3a08d8 RBP: ffffc900032778b0 R08: 00000000000002fc R09: 0000000000000000 R10: 00000000000002fc R11: 0000000000000000 R12: ff88802b3a08b8 R13: 1ffff9200064eec8 R14: ffffc90003277a00 R15: dffffc0000000000 FS: 00007f940feb06c0(0000) GS:ffff8880b9400000(0000) 000000000000 CS: 0010 DS: 0000 ES : 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000000245e8000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000 000 DR2: 0000000000000000 DR3: 00000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Seguimiento de llamadas:  ip6_route_info_create+0x99e/0x12b0 net/ipv6/route.c :3809 ip6_route_add+0x28/0x160 net/ipv6/route.c:3853 ipv6_route_ioctl+0x588/0x870 net/ipv6/route.c:4483 inet6_ioctl+0x21a/0x280 net/ipv6/af_inet6.c:579 0x158/0x460 neto /socket.c:1222 sock_ioctl+0x629/0x8e0 net/socket.c:1341 vfs_ioctl fs/ioctl.c:51 [en l\u00ednea] __do_sys_ioctl fs/ioctl.c:907 [en l\u00ednea] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c :893 do_syscall_x64 arch/x86/entry/common.c:52 [en l\u00ednea] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 Entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f940f07cea9\"}],\"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\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.17\",\"versionEndExcluding\":\"5.4.279\",\"matchCriteriaId\":\"7E97C9AF-9148-4AD9-B3DA-F7F536B4B7DA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.221\",\"matchCriteriaId\":\"659E1520-6345-41AF-B893-A7C0647585A0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.162\",\"matchCriteriaId\":\"10A39ACC-3005-40E8-875C-98A372D1FFD5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.96\",\"matchCriteriaId\":\"61E887B4-732A-40D2-9983-CC6F281EBFB7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.36\",\"matchCriteriaId\":\"E1046C95-860A-45B0-B718-2B29F65BFF10\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.9.7\",\"matchCriteriaId\":\"0A047AF2-94AC-4A3A-B32D-6AB930D8EF1C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.10:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"2EBB4392-5FA6-4DA9-9772-8F9C750109FA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.10:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"331C2F14-12C7-45D5-893D-8C52EE38EA10\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.10:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"3173713D-909A-4DD3-9DD4-1E171EB057EE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.10:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"79F18AFA-40F7-43F0-BA30-7BDB65F918B9\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/2eab4543a2204092c3a7af81d7d6c506e59a03a6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/3200ffeec4d59aad5bc9ca75d2c1fae47c0aeade\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/4cdfe813015d5a24586bd0a84fa0fa6eb0a1f668\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/88b9a55e2e35ea846d41f4efdc29d23345bd1aa4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ae8d3d39efe366c2198f530e01e4bf07830bf403\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b6947723c9eabcab58cfb33cdb0a565a6aee6727\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/de5ad4d45cd0128a2a37555f48ab69aa19d78adc\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


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