CVE-2024-40961 (GCVE-0-2024-40961)

Vulnerability from cvelistv5 – Published: 2024-07-12 12:32 – Updated: 2026-05-12 11:55
VLAI
Title
ipv6: prevent possible NULL deref in fib6_nh_init()
Summary
In the Linux kernel, the following vulnerability has been resolved: ipv6: prevent possible NULL deref in fib6_nh_init() syzbot reminds us that in6_dev_get() can return NULL. fib6_nh_init() ip6_validate_gw( &idev ) ip6_route_check_nh( idev ) *idev = in6_dev_get(dev); // can be NULL Oops: general protection fault, probably for non-canonical address 0xdffffc00000000bc: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x00000000000005e0-0x00000000000005e7] CPU: 0 PID: 11237 Comm: syz-executor.3 Not tainted 6.10.0-rc2-syzkaller-00249-gbe27b8965297 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 RIP: 0010:fib6_nh_init+0x640/0x2160 net/ipv6/route.c:3606 Code: 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 <42> 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: ffff88802b3a08b8 R13: 1ffff9200064eec8 R14: ffffc90003277a00 R15: dffffc0000000000 FS: 00007f940feb06c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000000245e8000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> 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 sock_do_ioctl+0x158/0x460 net/socket.c:1222 sock_ioctl+0x629/0x8e0 net/socket.c:1341 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f940f07cea9
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 428604fb118facce1309670779a35baf27ad044c , < 3200ffeec4d59aad5bc9ca75d2c1fae47c0aeade (git)
Affected: 428604fb118facce1309670779a35baf27ad044c , < de5ad4d45cd0128a2a37555f48ab69aa19d78adc (git)
Affected: 428604fb118facce1309670779a35baf27ad044c , < 4cdfe813015d5a24586bd0a84fa0fa6eb0a1f668 (git)
Affected: 428604fb118facce1309670779a35baf27ad044c , < 88b9a55e2e35ea846d41f4efdc29d23345bd1aa4 (git)
Affected: 428604fb118facce1309670779a35baf27ad044c , < b6947723c9eabcab58cfb33cdb0a565a6aee6727 (git)
Affected: 428604fb118facce1309670779a35baf27ad044c , < ae8d3d39efe366c2198f530e01e4bf07830bf403 (git)
Affected: 428604fb118facce1309670779a35baf27ad044c , < 2eab4543a2204092c3a7af81d7d6c506e59a03a6 (git)
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Linux Linux Affected: 4.17
Unaffected: 0 , < 4.17 (semver)
Unaffected: 5.4.279 , ≤ 5.4.* (semver)
Unaffected: 5.10.221 , ≤ 5.10.* (semver)
Unaffected: 5.15.162 , ≤ 5.15.* (semver)
Unaffected: 6.1.96 , ≤ 6.1.* (semver)
Unaffected: 6.6.36 , ≤ 6.6.* (semver)
Unaffected: 6.9.7 , ≤ 6.9.* (semver)
Unaffected: 6.10 , ≤ * (original_commit_for_fix)
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Siemens RUGGEDCOM RST2428P Affected: 0 , < V3.1 (custom)
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Siemens RUGGEDCOM RST2428P Unaffected: 0 , < * (custom)
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Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family Unaffected: 0 , < * (custom)
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Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 family Affected: 0 , < V3.1 (custom)
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Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 family Unaffected: 0 , < * (custom)
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Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem Affected: 0 , < * (custom)
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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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    "nvd": "{\"cve\":{\"id\":\"CVE-2024-40961\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-07-12T13:15:18.110\",\"lastModified\":\"2026-06-17T07:46:58.043\",\"vulnStatus\":\"Modified\",\"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\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"net/ipv6/route.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"428604fb118facce1309670779a35baf27ad044c\",\"lessThan\":\"3200ffeec4d59aad5bc9ca75d2c1fae47c0aeade\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"428604fb118facce1309670779a35baf27ad044c\",\"lessThan\":\"de5ad4d45cd0128a2a37555f48ab69aa19d78adc\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"428604fb118facce1309670779a35baf27ad044c\",\"lessThan\":\"4cdfe813015d5a24586bd0a84fa0fa6eb0a1f668\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"428604fb118facce1309670779a35baf27ad044c\",\"lessThan\":\"88b9a55e2e35ea846d41f4efdc29d23345bd1aa4\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"428604fb118facce1309670779a35baf27ad044c\",\"lessThan\":\"b6947723c9eabcab58cfb33cdb0a565a6aee6727\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"428604fb118facce1309670779a35baf27ad044c\",\"lessThan\":\"ae8d3d39efe366c2198f530e01e4bf07830bf403\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"428604fb118facce1309670779a35baf27ad044c\",\"lessThan\":\"2eab4543a2204092c3a7af81d7d6c506e59a03a6\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"net/ipv6/route.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"4.17\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"4.17\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.4.279\",\"lessThanOrEqual\":\"5.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.221\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.162\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.96\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.36\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.9.7\",\"lessThanOrEqual\":\"6.9.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.10\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]},{\"source\":\"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e\",\"affectedData\":[{\"vendor\":\"Siemens\",\"product\":\"RUGGEDCOM 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family\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"V3.1\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SCALANCE XCM-/XRM-/XCH-/XRH-300 family\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"*\",\"versionType\":\"custom\",\"status\":\"unaffected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SIMATIC S7-1500 TM MFP - GNU/Linux subsystem\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"*\",\"versionType\":\"custom\",\"status\":\"affected\"}]}]}],\"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}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-09-10T17:03:26.191957Z\",\"id\":\"CVE-2024-40961\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA 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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-28T11:32:58+00:00",
      "cve": "CVE-2024-40961",
      "id": "CVE-2024-40961",
      "initial_release_date": "2024-07-12T00:00:00+00:00",
      "product_status:fixed": "429",
      "product_status:known_affected": "64",
      "product_status:known_not_affected": "8",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: ipv6: prevent possible NULL deref in fib6_nh_init()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-40961.json",
      "version": "3"
    },
    "vulnrichment": {
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\"428604fb118facce1309670779a35baf27ad044c\", \"lessThan\": \"3200ffeec4d59aad5bc9ca75d2c1fae47c0aeade\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"428604fb118facce1309670779a35baf27ad044c\", \"lessThan\": \"de5ad4d45cd0128a2a37555f48ab69aa19d78adc\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"428604fb118facce1309670779a35baf27ad044c\", \"lessThan\": \"4cdfe813015d5a24586bd0a84fa0fa6eb0a1f668\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"428604fb118facce1309670779a35baf27ad044c\", \"lessThan\": \"88b9a55e2e35ea846d41f4efdc29d23345bd1aa4\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"428604fb118facce1309670779a35baf27ad044c\", \"lessThan\": \"b6947723c9eabcab58cfb33cdb0a565a6aee6727\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"428604fb118facce1309670779a35baf27ad044c\", \"lessThan\": \"ae8d3d39efe366c2198f530e01e4bf07830bf403\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"428604fb118facce1309670779a35baf27ad044c\", \"lessThan\": \"2eab4543a2204092c3a7af81d7d6c506e59a03a6\", \"versionType\": \"git\"}], \"programFiles\": [\"net/ipv6/route.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.17\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"4.17\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.4.279\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.221\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.162\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.96\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.36\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.9.7\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.9.*\"}, {\"status\": \"unaffected\", \"version\": \"6.10\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/ipv6/route.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/3200ffeec4d59aad5bc9ca75d2c1fae47c0aeade\"}, {\"url\": \"https://git.kernel.org/stable/c/de5ad4d45cd0128a2a37555f48ab69aa19d78adc\"}, {\"url\": \"https://git.kernel.org/stable/c/4cdfe813015d5a24586bd0a84fa0fa6eb0a1f668\"}, {\"url\": \"https://git.kernel.org/stable/c/88b9a55e2e35ea846d41f4efdc29d23345bd1aa4\"}, {\"url\": \"https://git.kernel.org/stable/c/b6947723c9eabcab58cfb33cdb0a565a6aee6727\"}, {\"url\": \"https://git.kernel.org/stable/c/ae8d3d39efe366c2198f530e01e4bf07830bf403\"}, {\"url\": \"https://git.kernel.org/stable/c/2eab4543a2204092c3a7af81d7d6c506e59a03a6\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"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\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.279\", \"versionStartIncluding\": \"4.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.221\", \"versionStartIncluding\": \"4.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.162\", \"versionStartIncluding\": \"4.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.96\", \"versionStartIncluding\": \"4.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.36\", \"versionStartIncluding\": \"4.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.9.7\", \"versionStartIncluding\": \"4.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.10\", \"versionStartIncluding\": \"4.17\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T20:23:11.180Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-40961\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T20:23:11.180Z\", \"dateReserved\": \"2024-07-12T12:17:45.594Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-07-12T12:32:02.654Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • 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.