Vulnerability-Lookup

FKIE_CVE-2026-23010

Vulnerability from fkie_nvd - Published: 2026-01-25 15:15 - Updated: 2026-03-25 19:53

Severity ?

7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: ipv6: Fix use-after-free in inet6_addr_del(). syzbot reported use-after-free of inet6_ifaddr in inet6_addr_del(). [0] The cited commit accidentally moved ipv6_del_addr() for mngtmpaddr before reading its ifp->flags for temporary addresses in inet6_addr_del(). Let's move ipv6_del_addr() down to fix the UAF. [0]: BUG: KASAN: slab-use-after-free in inet6_addr_del.constprop.0+0x67a/0x6b0 net/ipv6/addrconf.c:3117 Read of size 4 at addr ffff88807b89c86c by task syz.3.1618/9593 CPU: 0 UID: 0 PID: 9593 Comm: syz.3.1618 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: <TASK> __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:378 [inline] print_report+0xcd/0x630 mm/kasan/report.c:482 kasan_report+0xe0/0x110 mm/kasan/report.c:595 inet6_addr_del.constprop.0+0x67a/0x6b0 net/ipv6/addrconf.c:3117 addrconf_del_ifaddr+0x11e/0x190 net/ipv6/addrconf.c:3181 inet6_ioctl+0x1e5/0x2b0 net/ipv6/af_inet6.c:582 sock_do_ioctl+0x118/0x280 net/socket.c:1254 sock_ioctl+0x227/0x6b0 net/socket.c:1375 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl fs/ioctl.c:583 [inline] __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f164cf8f749 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f164de64038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f164d1e5fa0 RCX: 00007f164cf8f749 RDX: 0000200000000000 RSI: 0000000000008936 RDI: 0000000000000003 RBP: 00007f164d013f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f164d1e6038 R14: 00007f164d1e5fa0 R15: 00007ffde15c8288 </TASK> Allocated by task 9593: kasan_save_stack+0x33/0x60 mm/kasan/common.c:56 kasan_save_track+0x14/0x30 mm/kasan/common.c:77 poison_kmalloc_redzone mm/kasan/common.c:397 [inline] __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:414 kmalloc_noprof include/linux/slab.h:957 [inline] kzalloc_noprof include/linux/slab.h:1094 [inline] ipv6_add_addr+0x4e3/0x2010 net/ipv6/addrconf.c:1120 inet6_addr_add+0x256/0x9b0 net/ipv6/addrconf.c:3050 addrconf_add_ifaddr+0x1fc/0x450 net/ipv6/addrconf.c:3160 inet6_ioctl+0x103/0x2b0 net/ipv6/af_inet6.c:580 sock_do_ioctl+0x118/0x280 net/socket.c:1254 sock_ioctl+0x227/0x6b0 net/socket.c:1375 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl fs/ioctl.c:583 [inline] __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f Freed by task 6099: kasan_save_stack+0x33/0x60 mm/kasan/common.c:56 kasan_save_track+0x14/0x30 mm/kasan/common.c:77 kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:584 poison_slab_object mm/kasan/common.c:252 [inline] __kasan_slab_free+0x5f/0x80 mm/kasan/common.c:284 kasan_slab_free include/linux/kasan.h:234 [inline] slab_free_hook mm/slub.c:2540 [inline] slab_free_freelist_hook mm/slub.c:2569 [inline] slab_free_bulk mm/slub.c:6696 [inline] kmem_cache_free_bulk mm/slub.c:7383 [inline] kmem_cache_free_bulk+0x2bf/0x680 mm/slub.c:7362 kfree_bulk include/linux/slab.h:830 [inline] kvfree_rcu_bulk+0x1b7/0x1e0 mm/slab_common.c:1523 kvfree_rcu_drain_ready mm/slab_common.c:1728 [inline] kfree_rcu_monitor+0x1d0/0x2f0 mm/slab_common.c:1801 process_one_work+0x9ba/0x1b20 kernel/workqueue.c:3257 process_scheduled_works kernel/workqu ---truncated---

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/2684610a9c9c53f262fd864fa5c407e79f304804	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/6e89d60b4f03014f7d412ce64b17a840840d490e	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/8b6dcb565e419846bd521e31d5e1f98e4d0e1179	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/9356b69d03d0f50cce91cebdabd33dda023fbd64	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ddf96c393a33aef4887e2e406c76c2f8cda1419c	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	6.13
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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              "versionEndExcluding": "6.1.162",
              "versionStartIncluding": "6.1.120",
              "vulnerable": true
            },
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              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "0D5D88F1-0BCF-4356-A30D-5685E2B9D6F9",
              "versionEndExcluding": "6.6.122",
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              "vulnerable": true
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              "matchCriteriaId": "4CBF5F6E-D446-4CAE-AAA4-413442319824",
              "versionEndExcluding": "6.12",
              "versionStartIncluding": "6.11.11",
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              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "81BDB0AD-3170-4EDF-80AB-CBB92F6FD25C",
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              "versionStartIncluding": "6.12.2",
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              "matchCriteriaId": "EBDCB390-1492-4C5A-8DB3-9078B54AADF2",
              "versionEndExcluding": "6.18.7",
              "versionStartIncluding": "6.13.1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.13:-:*:*:*:*:*:*",
              "matchCriteriaId": "5A3F9505-6B98-4269-8B81-127E55A1BF00",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "17B67AA7-40D6-4AFA-8459-F200F3D7CFD1",
              "vulnerable": true
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              "matchCriteriaId": "C47E4CC9-C826-4FA9-B014-7FE3D9B318B2",
              "vulnerable": true
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              "matchCriteriaId": "F71D92C0-C023-48BD-B3B6-70B638EEE298",
              "vulnerable": true
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              "matchCriteriaId": "13580667-0A98-40CC-B29F-D12790B91BDB",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc5:*:*:*:*:*:*",
              "matchCriteriaId": "CAD1FED7-CF48-47BF-AC7D-7B6FA3C065FC",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc6:*:*:*:*:*:*",
              "matchCriteriaId": "3EF854A1-ABB1-4E93-BE9A-44569EC76C0D",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc7:*:*:*:*:*:*",
              "matchCriteriaId": "F5DC0CA6-F0AF-4DDF-A882-3DADB9A886A7",
              "vulnerable": true
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              "criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc8:*:*:*:*:*:*",
              "matchCriteriaId": "EB5B7DFC-C36B-45D8-922C-877569FDDF43",
              "vulnerable": true
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          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: Fix use-after-free in inet6_addr_del().\n\nsyzbot reported use-after-free of inet6_ifaddr in\ninet6_addr_del(). [0]\n\nThe cited commit accidentally moved ipv6_del_addr() for\nmngtmpaddr before reading its ifp-\u003eflags for temporary\naddresses in inet6_addr_del().\n\nLet\u0027s move ipv6_del_addr() down to fix the UAF.\n\n[0]:\nBUG: KASAN: slab-use-after-free in inet6_addr_del.constprop.0+0x67a/0x6b0 net/ipv6/addrconf.c:3117\nRead of size 4 at addr ffff88807b89c86c by task syz.3.1618/9593\n\nCPU: 0 UID: 0 PID: 9593 Comm: syz.3.1618 Not tainted syzkaller #0 PREEMPT(full)\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025\nCall Trace:\n \u003cTASK\u003e\n __dump_stack lib/dump_stack.c:94 [inline]\n dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120\n print_address_description mm/kasan/report.c:378 [inline]\n print_report+0xcd/0x630 mm/kasan/report.c:482\n kasan_report+0xe0/0x110 mm/kasan/report.c:595\n inet6_addr_del.constprop.0+0x67a/0x6b0 net/ipv6/addrconf.c:3117\n addrconf_del_ifaddr+0x11e/0x190 net/ipv6/addrconf.c:3181\n inet6_ioctl+0x1e5/0x2b0 net/ipv6/af_inet6.c:582\n sock_do_ioctl+0x118/0x280 net/socket.c:1254\n sock_ioctl+0x227/0x6b0 net/socket.c:1375\n vfs_ioctl fs/ioctl.c:51 [inline]\n __do_sys_ioctl fs/ioctl.c:597 [inline]\n __se_sys_ioctl fs/ioctl.c:583 [inline]\n __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:583\n do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\nRIP: 0033:0x7f164cf8f749\nCode: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48\nRSP: 002b:00007f164de64038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010\nRAX: ffffffffffffffda RBX: 00007f164d1e5fa0 RCX: 00007f164cf8f749\nRDX: 0000200000000000 RSI: 0000000000008936 RDI: 0000000000000003\nRBP: 00007f164d013f91 R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\nR13: 00007f164d1e6038 R14: 00007f164d1e5fa0 R15: 00007ffde15c8288\n \u003c/TASK\u003e\n\nAllocated by task 9593:\n kasan_save_stack+0x33/0x60 mm/kasan/common.c:56\n kasan_save_track+0x14/0x30 mm/kasan/common.c:77\n poison_kmalloc_redzone mm/kasan/common.c:397 [inline]\n __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:414\n kmalloc_noprof include/linux/slab.h:957 [inline]\n kzalloc_noprof include/linux/slab.h:1094 [inline]\n ipv6_add_addr+0x4e3/0x2010 net/ipv6/addrconf.c:1120\n inet6_addr_add+0x256/0x9b0 net/ipv6/addrconf.c:3050\n addrconf_add_ifaddr+0x1fc/0x450 net/ipv6/addrconf.c:3160\n inet6_ioctl+0x103/0x2b0 net/ipv6/af_inet6.c:580\n sock_do_ioctl+0x118/0x280 net/socket.c:1254\n sock_ioctl+0x227/0x6b0 net/socket.c:1375\n vfs_ioctl fs/ioctl.c:51 [inline]\n __do_sys_ioctl fs/ioctl.c:597 [inline]\n __se_sys_ioctl fs/ioctl.c:583 [inline]\n __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:583\n do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nFreed by task 6099:\n kasan_save_stack+0x33/0x60 mm/kasan/common.c:56\n kasan_save_track+0x14/0x30 mm/kasan/common.c:77\n kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:584\n poison_slab_object mm/kasan/common.c:252 [inline]\n __kasan_slab_free+0x5f/0x80 mm/kasan/common.c:284\n kasan_slab_free include/linux/kasan.h:234 [inline]\n slab_free_hook mm/slub.c:2540 [inline]\n slab_free_freelist_hook mm/slub.c:2569 [inline]\n slab_free_bulk mm/slub.c:6696 [inline]\n kmem_cache_free_bulk mm/slub.c:7383 [inline]\n kmem_cache_free_bulk+0x2bf/0x680 mm/slub.c:7362\n kfree_bulk include/linux/slab.h:830 [inline]\n kvfree_rcu_bulk+0x1b7/0x1e0 mm/slab_common.c:1523\n kvfree_rcu_drain_ready mm/slab_common.c:1728 [inline]\n kfree_rcu_monitor+0x1d0/0x2f0 mm/slab_common.c:1801\n process_one_work+0x9ba/0x1b20 kernel/workqueue.c:3257\n process_scheduled_works kernel/workqu\n---truncated---"
    }
  ],
  "id": "CVE-2026-23010",
  "lastModified": "2026-03-25T19:53:05.507",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2026-01-25T15:15:55.867",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/2684610a9c9c53f262fd864fa5c407e79f304804"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/6e89d60b4f03014f7d412ce64b17a840840d490e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/8b6dcb565e419846bd521e31d5e1f98e4d0e1179"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/9356b69d03d0f50cce91cebdabd33dda023fbd64"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/ddf96c393a33aef4887e2e406c76c2f8cda1419c"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2026-23010 (GCVE-0-2026-23010)

Vulnerability from cvelistv5 – Published: 2026-01-25 14:36 – Updated: 2026-02-09 08:37

Title

ipv6: Fix use-after-free in inet6_addr_del().

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/6e89d60b4f03014f7…
	https://git.kernel.org/stable/c/9356b69d03d0f50cc…
	https://git.kernel.org/stable/c/2684610a9c9c53f26…
	https://git.kernel.org/stable/c/8b6dcb565e419846b…
	https://git.kernel.org/stable/c/ddf96c393a33aef48…

Impacted products

Vendor

Product

Version

Linux

Affected: ca97dd10424860a3806ad3a9e26b9dce2901ee0c , < 6e89d60b4f03014f7d412ce64b17a840840d490e (git)
Affected: 836deb96383ed9c1a411f172954d74b3f74ec6ac , < 9356b69d03d0f50cce91cebdabd33dda023fbd64 (git)
Affected: cb74207ef98317f8874a0b9780bb339c2eb700b0 , < 2684610a9c9c53f262fd864fa5c407e79f304804 (git)
Affected: 00b5b7aab9e422d00d5a9d03d7e0760a76b5d57f , < 8b6dcb565e419846bd521e31d5e1f98e4d0e1179 (git)
Affected: 00b5b7aab9e422d00d5a9d03d7e0760a76b5d57f , < ddf96c393a33aef4887e2e406c76c2f8cda1419c (git)
Affected: 851b3bb105c595cc20b8dcc1b4de029061ce2b76 (git)

Linux

Affected: 6.13
Unaffected: 0 , < 6.13 (semver)
Unaffected: 6.1.162 , ≤ 6.1.* (semver)
Unaffected: 6.6.122 , ≤ 6.6.* (semver)
Unaffected: 6.12.67 , ≤ 6.12.* (semver)
Unaffected: 6.18.7 , ≤ 6.18.* (semver)
Unaffected: 6.19 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/ipv6/addrconf.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "6e89d60b4f03014f7d412ce64b17a840840d490e",
              "status": "affected",
              "version": "ca97dd10424860a3806ad3a9e26b9dce2901ee0c",
              "versionType": "git"
            },
            {
              "lessThan": "9356b69d03d0f50cce91cebdabd33dda023fbd64",
              "status": "affected",
              "version": "836deb96383ed9c1a411f172954d74b3f74ec6ac",
              "versionType": "git"
            },
            {
              "lessThan": "2684610a9c9c53f262fd864fa5c407e79f304804",
              "status": "affected",
              "version": "cb74207ef98317f8874a0b9780bb339c2eb700b0",
              "versionType": "git"
            },
            {
              "lessThan": "8b6dcb565e419846bd521e31d5e1f98e4d0e1179",
              "status": "affected",
              "version": "00b5b7aab9e422d00d5a9d03d7e0760a76b5d57f",
              "versionType": "git"
            },
            {
              "lessThan": "ddf96c393a33aef4887e2e406c76c2f8cda1419c",
              "status": "affected",
              "version": "00b5b7aab9e422d00d5a9d03d7e0760a76b5d57f",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "851b3bb105c595cc20b8dcc1b4de029061ce2b76",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/ipv6/addrconf.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.13"
            },
            {
              "lessThan": "6.13",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.162",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.122",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.67",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.162",
                  "versionStartIncluding": "6.1.120",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.122",
                  "versionStartIncluding": "6.6.64",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.67",
                  "versionStartIncluding": "6.12.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.7",
                  "versionStartIncluding": "6.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19",
                  "versionStartIncluding": "6.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "6.11.11",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: Fix use-after-free in inet6_addr_del().\n\nsyzbot reported use-after-free of inet6_ifaddr in\ninet6_addr_del(). [0]\n\nThe cited commit accidentally moved ipv6_del_addr() for\nmngtmpaddr before reading its ifp-\u003eflags for temporary\naddresses in inet6_addr_del().\n\nLet\u0027s move ipv6_del_addr() down to fix the UAF.\n\n[0]:\nBUG: KASAN: slab-use-after-free in inet6_addr_del.constprop.0+0x67a/0x6b0 net/ipv6/addrconf.c:3117\nRead of size 4 at addr ffff88807b89c86c by task syz.3.1618/9593\n\nCPU: 0 UID: 0 PID: 9593 Comm: syz.3.1618 Not tainted syzkaller #0 PREEMPT(full)\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025\nCall Trace:\n \u003cTASK\u003e\n __dump_stack lib/dump_stack.c:94 [inline]\n dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120\n print_address_description mm/kasan/report.c:378 [inline]\n print_report+0xcd/0x630 mm/kasan/report.c:482\n kasan_report+0xe0/0x110 mm/kasan/report.c:595\n inet6_addr_del.constprop.0+0x67a/0x6b0 net/ipv6/addrconf.c:3117\n addrconf_del_ifaddr+0x11e/0x190 net/ipv6/addrconf.c:3181\n inet6_ioctl+0x1e5/0x2b0 net/ipv6/af_inet6.c:582\n sock_do_ioctl+0x118/0x280 net/socket.c:1254\n sock_ioctl+0x227/0x6b0 net/socket.c:1375\n vfs_ioctl fs/ioctl.c:51 [inline]\n __do_sys_ioctl fs/ioctl.c:597 [inline]\n __se_sys_ioctl fs/ioctl.c:583 [inline]\n __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:583\n do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\nRIP: 0033:0x7f164cf8f749\nCode: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48\nRSP: 002b:00007f164de64038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010\nRAX: ffffffffffffffda RBX: 00007f164d1e5fa0 RCX: 00007f164cf8f749\nRDX: 0000200000000000 RSI: 0000000000008936 RDI: 0000000000000003\nRBP: 00007f164d013f91 R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\nR13: 00007f164d1e6038 R14: 00007f164d1e5fa0 R15: 00007ffde15c8288\n \u003c/TASK\u003e\n\nAllocated by task 9593:\n kasan_save_stack+0x33/0x60 mm/kasan/common.c:56\n kasan_save_track+0x14/0x30 mm/kasan/common.c:77\n poison_kmalloc_redzone mm/kasan/common.c:397 [inline]\n __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:414\n kmalloc_noprof include/linux/slab.h:957 [inline]\n kzalloc_noprof include/linux/slab.h:1094 [inline]\n ipv6_add_addr+0x4e3/0x2010 net/ipv6/addrconf.c:1120\n inet6_addr_add+0x256/0x9b0 net/ipv6/addrconf.c:3050\n addrconf_add_ifaddr+0x1fc/0x450 net/ipv6/addrconf.c:3160\n inet6_ioctl+0x103/0x2b0 net/ipv6/af_inet6.c:580\n sock_do_ioctl+0x118/0x280 net/socket.c:1254\n sock_ioctl+0x227/0x6b0 net/socket.c:1375\n vfs_ioctl fs/ioctl.c:51 [inline]\n __do_sys_ioctl fs/ioctl.c:597 [inline]\n __se_sys_ioctl fs/ioctl.c:583 [inline]\n __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:583\n do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nFreed by task 6099:\n kasan_save_stack+0x33/0x60 mm/kasan/common.c:56\n kasan_save_track+0x14/0x30 mm/kasan/common.c:77\n kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:584\n poison_slab_object mm/kasan/common.c:252 [inline]\n __kasan_slab_free+0x5f/0x80 mm/kasan/common.c:284\n kasan_slab_free include/linux/kasan.h:234 [inline]\n slab_free_hook mm/slub.c:2540 [inline]\n slab_free_freelist_hook mm/slub.c:2569 [inline]\n slab_free_bulk mm/slub.c:6696 [inline]\n kmem_cache_free_bulk mm/slub.c:7383 [inline]\n kmem_cache_free_bulk+0x2bf/0x680 mm/slub.c:7362\n kfree_bulk include/linux/slab.h:830 [inline]\n kvfree_rcu_bulk+0x1b7/0x1e0 mm/slab_common.c:1523\n kvfree_rcu_drain_ready mm/slab_common.c:1728 [inline]\n kfree_rcu_monitor+0x1d0/0x2f0 mm/slab_common.c:1801\n process_one_work+0x9ba/0x1b20 kernel/workqueue.c:3257\n process_scheduled_works kernel/workqu\n---truncated---"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-09T08:37:03.184Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/6e89d60b4f03014f7d412ce64b17a840840d490e"
        },
        {
          "url": "https://git.kernel.org/stable/c/9356b69d03d0f50cce91cebdabd33dda023fbd64"
        },
        {
          "url": "https://git.kernel.org/stable/c/2684610a9c9c53f262fd864fa5c407e79f304804"
        },
        {
          "url": "https://git.kernel.org/stable/c/8b6dcb565e419846bd521e31d5e1f98e4d0e1179"
        },
        {
          "url": "https://git.kernel.org/stable/c/ddf96c393a33aef4887e2e406c76c2f8cda1419c"
        }
      ],
      "title": "ipv6: Fix use-after-free in inet6_addr_del().",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-23010",
    "datePublished": "2026-01-25T14:36:23.593Z",
    "dateReserved": "2026-01-13T15:37:45.939Z",
    "dateUpdated": "2026-02-09T08:37:03.184Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

FKIE_CVE-2026-23010

CVE-2026-23010 (GCVE-0-2026-23010)

Tags

Sightings

Nomenclature