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CVE-2023-53831 (GCVE-0-2023-53831)

Vulnerability from cvelistv5 – Published: 2025-12-09 01:29 – Updated: 2026-05-11 19:52
VLAI
Title
net: read sk->sk_family once in sk_mc_loop()
Summary
In the Linux kernel, the following vulnerability has been resolved: net: read sk->sk_family once in sk_mc_loop() syzbot is playing with IPV6_ADDRFORM quite a lot these days, and managed to hit the WARN_ON_ONCE(1) in sk_mc_loop() We have many more similar issues to fix. WARNING: CPU: 1 PID: 1593 at net/core/sock.c:782 sk_mc_loop+0x165/0x260 Modules linked in: CPU: 1 PID: 1593 Comm: kworker/1:3 Not tainted 6.1.40-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 Workqueue: events_power_efficient gc_worker RIP: 0010:sk_mc_loop+0x165/0x260 net/core/sock.c:782 Code: 34 1b fd 49 81 c7 18 05 00 00 4c 89 f8 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 ff e8 25 36 6d fd 4d 8b 37 eb 13 e8 db 33 1b fd <0f> 0b b3 01 eb 34 e8 d0 33 1b fd 45 31 f6 49 83 c6 38 4c 89 f0 48 RSP: 0018:ffffc90000388530 EFLAGS: 00010246 RAX: ffffffff846d9b55 RBX: 0000000000000011 RCX: ffff88814f884980 RDX: 0000000000000102 RSI: ffffffff87ae5160 RDI: 0000000000000011 RBP: ffffc90000388550 R08: 0000000000000003 R09: ffffffff846d9a65 R10: 0000000000000002 R11: ffff88814f884980 R12: dffffc0000000000 R13: ffff88810dbee000 R14: 0000000000000010 R15: ffff888150084000 FS: 0000000000000000(0000) GS:ffff8881f6b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000180 CR3: 000000014ee5b000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <IRQ> [<ffffffff8507734f>] ip6_finish_output2+0x33f/0x1ae0 net/ipv6/ip6_output.c:83 [<ffffffff85062766>] __ip6_finish_output net/ipv6/ip6_output.c:200 [inline] [<ffffffff85062766>] ip6_finish_output+0x6c6/0xb10 net/ipv6/ip6_output.c:211 [<ffffffff85061f8c>] NF_HOOK_COND include/linux/netfilter.h:298 [inline] [<ffffffff85061f8c>] ip6_output+0x2bc/0x3d0 net/ipv6/ip6_output.c:232 [<ffffffff852071cf>] dst_output include/net/dst.h:444 [inline] [<ffffffff852071cf>] ip6_local_out+0x10f/0x140 net/ipv6/output_core.c:161 [<ffffffff83618fb4>] ipvlan_process_v6_outbound drivers/net/ipvlan/ipvlan_core.c:483 [inline] [<ffffffff83618fb4>] ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:529 [inline] [<ffffffff83618fb4>] ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:602 [inline] [<ffffffff83618fb4>] ipvlan_queue_xmit+0x1174/0x1be0 drivers/net/ipvlan/ipvlan_core.c:677 [<ffffffff8361ddd9>] ipvlan_start_xmit+0x49/0x100 drivers/net/ipvlan/ipvlan_main.c:229 [<ffffffff84763fc0>] netdev_start_xmit include/linux/netdevice.h:4925 [inline] [<ffffffff84763fc0>] xmit_one net/core/dev.c:3644 [inline] [<ffffffff84763fc0>] dev_hard_start_xmit+0x320/0x980 net/core/dev.c:3660 [<ffffffff8494c650>] sch_direct_xmit+0x2a0/0x9c0 net/sched/sch_generic.c:342 [<ffffffff8494d883>] qdisc_restart net/sched/sch_generic.c:407 [inline] [<ffffffff8494d883>] __qdisc_run+0xb13/0x1e70 net/sched/sch_generic.c:415 [<ffffffff8478c426>] qdisc_run+0xd6/0x260 include/net/pkt_sched.h:125 [<ffffffff84796eac>] net_tx_action+0x7ac/0x940 net/core/dev.c:5247 [<ffffffff858002bd>] __do_softirq+0x2bd/0x9bd kernel/softirq.c:599 [<ffffffff814c3fe8>] invoke_softirq kernel/softirq.c:430 [inline] [<ffffffff814c3fe8>] __irq_exit_rcu+0xc8/0x170 kernel/softirq.c:683 [<ffffffff814c3f09>] irq_exit_rcu+0x9/0x20 kernel/softirq.c:695
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 7ad6848c7e81a603605fad3f3575841aab004eea , < 7586a66b9c4f1b8a825ea1dfa3a91aad5cc7b89b (git)
Affected: 7ad6848c7e81a603605fad3f3575841aab004eea , < e918d0211ffbaf039447334c3460cafee1ce0157 (git)
Affected: 7ad6848c7e81a603605fad3f3575841aab004eea , < 41f10a4d78fe69d685a3172e6884297f233dcf95 (git)
Affected: 7ad6848c7e81a603605fad3f3575841aab004eea , < 895dc4c47171a20035cdaa8d74c1c1e97f2fc974 (git)
Affected: 7ad6848c7e81a603605fad3f3575841aab004eea , < ed4e0adfa407ab65dd73b8862ebf2f308a0349d2 (git)
Affected: 7ad6848c7e81a603605fad3f3575841aab004eea , < 9036b6342fcdab190d6edce3dd447859c1de90fc (git)
Affected: 7ad6848c7e81a603605fad3f3575841aab004eea , < b1f5b890b89cb38a6c0bac91984d56cd69808e8c (git)
Affected: 7ad6848c7e81a603605fad3f3575841aab004eea , < a3e0fdf71bbe031de845e8e08ed7fba49f9c702c (git)
guessed Create a notification for this product.
Linux Linux Affected: 2.6.33
Unaffected: 0 , < 2.6.33 (semver)
Unaffected: 4.14.326 , ≤ 4.14.* (semver)
Unaffected: 4.19.295 , ≤ 4.19.* (semver)
Unaffected: 5.4.257 , ≤ 5.4.* (semver)
Unaffected: 5.10.195 , ≤ 5.10.* (semver)
Unaffected: 5.15.132 , ≤ 5.15.* (semver)
Unaffected: 6.1.54 , ≤ 6.1.* (semver)
Unaffected: 6.5.4 , ≤ 6.5.* (semver)
Unaffected: 6.6 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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{
  "containers": {
    "cna": {
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/core/sock.c"
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              "status": "unaffected",
              "version": "4.19.295",
              "versionType": "semver"
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              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.257",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.195",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.132",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.54",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.5.*",
              "status": "unaffected",
              "version": "6.5.4",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.6",
              "versionType": "original_commit_for_fix"
            }
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        }
      ],
      "cpeApplicability": [
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          "nodes": [
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              "cpeMatch": [
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                  "versionStartIncluding": "2.6.33",
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                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.295",
                  "versionStartIncluding": "2.6.33",
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                {
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                {
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                  "versionEndExcluding": "5.10.195",
                  "versionStartIncluding": "2.6.33",
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                {
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                  "vulnerable": true
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                {
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                {
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                  "versionEndExcluding": "6.6",
                  "versionStartIncluding": "2.6.33",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: read sk-\u003esk_family once in sk_mc_loop()\n\nsyzbot is playing with IPV6_ADDRFORM quite a lot these days,\nand managed to hit the WARN_ON_ONCE(1) in sk_mc_loop()\n\nWe have many more similar issues to fix.\n\nWARNING: CPU: 1 PID: 1593 at net/core/sock.c:782 sk_mc_loop+0x165/0x260\nModules linked in:\nCPU: 1 PID: 1593 Comm: kworker/1:3 Not tainted 6.1.40-syzkaller #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023\nWorkqueue: events_power_efficient gc_worker\nRIP: 0010:sk_mc_loop+0x165/0x260 net/core/sock.c:782\nCode: 34 1b fd 49 81 c7 18 05 00 00 4c 89 f8 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 ff e8 25 36 6d fd 4d 8b 37 eb 13 e8 db 33 1b fd \u003c0f\u003e 0b b3 01 eb 34 e8 d0 33 1b fd 45 31 f6 49 83 c6 38 4c 89 f0 48\nRSP: 0018:ffffc90000388530 EFLAGS: 00010246\nRAX: ffffffff846d9b55 RBX: 0000000000000011 RCX: ffff88814f884980\nRDX: 0000000000000102 RSI: ffffffff87ae5160 RDI: 0000000000000011\nRBP: ffffc90000388550 R08: 0000000000000003 R09: ffffffff846d9a65\nR10: 0000000000000002 R11: ffff88814f884980 R12: dffffc0000000000\nR13: ffff88810dbee000 R14: 0000000000000010 R15: ffff888150084000\nFS: 0000000000000000(0000) GS:ffff8881f6b00000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000000020000180 CR3: 000000014ee5b000 CR4: 00000000003506e0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n\u003cIRQ\u003e\n[\u003cffffffff8507734f\u003e] ip6_finish_output2+0x33f/0x1ae0 net/ipv6/ip6_output.c:83\n[\u003cffffffff85062766\u003e] __ip6_finish_output net/ipv6/ip6_output.c:200 [inline]\n[\u003cffffffff85062766\u003e] ip6_finish_output+0x6c6/0xb10 net/ipv6/ip6_output.c:211\n[\u003cffffffff85061f8c\u003e] NF_HOOK_COND include/linux/netfilter.h:298 [inline]\n[\u003cffffffff85061f8c\u003e] ip6_output+0x2bc/0x3d0 net/ipv6/ip6_output.c:232\n[\u003cffffffff852071cf\u003e] dst_output include/net/dst.h:444 [inline]\n[\u003cffffffff852071cf\u003e] ip6_local_out+0x10f/0x140 net/ipv6/output_core.c:161\n[\u003cffffffff83618fb4\u003e] ipvlan_process_v6_outbound drivers/net/ipvlan/ipvlan_core.c:483 [inline]\n[\u003cffffffff83618fb4\u003e] ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:529 [inline]\n[\u003cffffffff83618fb4\u003e] ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:602 [inline]\n[\u003cffffffff83618fb4\u003e] ipvlan_queue_xmit+0x1174/0x1be0 drivers/net/ipvlan/ipvlan_core.c:677\n[\u003cffffffff8361ddd9\u003e] ipvlan_start_xmit+0x49/0x100 drivers/net/ipvlan/ipvlan_main.c:229\n[\u003cffffffff84763fc0\u003e] netdev_start_xmit include/linux/netdevice.h:4925 [inline]\n[\u003cffffffff84763fc0\u003e] xmit_one net/core/dev.c:3644 [inline]\n[\u003cffffffff84763fc0\u003e] dev_hard_start_xmit+0x320/0x980 net/core/dev.c:3660\n[\u003cffffffff8494c650\u003e] sch_direct_xmit+0x2a0/0x9c0 net/sched/sch_generic.c:342\n[\u003cffffffff8494d883\u003e] qdisc_restart net/sched/sch_generic.c:407 [inline]\n[\u003cffffffff8494d883\u003e] __qdisc_run+0xb13/0x1e70 net/sched/sch_generic.c:415\n[\u003cffffffff8478c426\u003e] qdisc_run+0xd6/0x260 include/net/pkt_sched.h:125\n[\u003cffffffff84796eac\u003e] net_tx_action+0x7ac/0x940 net/core/dev.c:5247\n[\u003cffffffff858002bd\u003e] __do_softirq+0x2bd/0x9bd kernel/softirq.c:599\n[\u003cffffffff814c3fe8\u003e] invoke_softirq kernel/softirq.c:430 [inline]\n[\u003cffffffff814c3fe8\u003e] __irq_exit_rcu+0xc8/0x170 kernel/softirq.c:683\n[\u003cffffffff814c3f09\u003e] irq_exit_rcu+0x9/0x20 kernel/softirq.c:695"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T19:52:22.798Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/7586a66b9c4f1b8a825ea1dfa3a91aad5cc7b89b"
        },
        {
          "url": "https://git.kernel.org/stable/c/e918d0211ffbaf039447334c3460cafee1ce0157"
        },
        {
          "url": "https://git.kernel.org/stable/c/41f10a4d78fe69d685a3172e6884297f233dcf95"
        },
        {
          "url": "https://git.kernel.org/stable/c/895dc4c47171a20035cdaa8d74c1c1e97f2fc974"
        },
        {
          "url": "https://git.kernel.org/stable/c/ed4e0adfa407ab65dd73b8862ebf2f308a0349d2"
        },
        {
          "url": "https://git.kernel.org/stable/c/9036b6342fcdab190d6edce3dd447859c1de90fc"
        },
        {
          "url": "https://git.kernel.org/stable/c/b1f5b890b89cb38a6c0bac91984d56cd69808e8c"
        },
        {
          "url": "https://git.kernel.org/stable/c/a3e0fdf71bbe031de845e8e08ed7fba49f9c702c"
        }
      ],
      "title": "net: read sk-\u003esk_family once in sk_mc_loop()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53831",
    "datePublished": "2025-12-09T01:29:46.374Z",
    "dateReserved": "2025-12-09T01:27:17.825Z",
    "dateUpdated": "2026-05-11T19:52:22.798Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2023-53831",
      "date": "2026-09-20",
      "epss": "0.00257",
      "percentile": "0.17708"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
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                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
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                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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                "versions": [
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                    "versionType": "git"
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                  {
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                  {
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                    "versionType": "git"
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                    "versionType": "git"
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                    "versionType": "git"
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                "programFiles": [
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                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
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                    "version": "2.6.33"
                  },
                  {
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                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
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                    "status": "unaffected",
                    "version": "4.14.326",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "4.19.*",
                    "status": "unaffected",
                    "version": "4.19.295",
                    "versionType": "semver"
                  },
                  {
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                    "status": "unaffected",
                    "version": "5.4.257",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.10.*",
                    "status": "unaffected",
                    "version": "5.10.195",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.15.*",
                    "status": "unaffected",
                    "version": "5.15.132",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.1.*",
                    "status": "unaffected",
                    "version": "6.1.54",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.5.*",
                    "status": "unaffected",
                    "version": "6.5.4",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "6.6",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: read sk-\u003esk_family once in sk_mc_loop()\n\nsyzbot is playing with IPV6_ADDRFORM quite a lot these days,\nand managed to hit the WARN_ON_ONCE(1) in sk_mc_loop()\n\nWe have many more similar issues to fix.\n\nWARNING: CPU: 1 PID: 1593 at net/core/sock.c:782 sk_mc_loop+0x165/0x260\nModules linked in:\nCPU: 1 PID: 1593 Comm: kworker/1:3 Not tainted 6.1.40-syzkaller #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023\nWorkqueue: events_power_efficient gc_worker\nRIP: 0010:sk_mc_loop+0x165/0x260 net/core/sock.c:782\nCode: 34 1b fd 49 81 c7 18 05 00 00 4c 89 f8 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 ff e8 25 36 6d fd 4d 8b 37 eb 13 e8 db 33 1b fd \u003c0f\u003e 0b b3 01 eb 34 e8 d0 33 1b fd 45 31 f6 49 83 c6 38 4c 89 f0 48\nRSP: 0018:ffffc90000388530 EFLAGS: 00010246\nRAX: ffffffff846d9b55 RBX: 0000000000000011 RCX: ffff88814f884980\nRDX: 0000000000000102 RSI: ffffffff87ae5160 RDI: 0000000000000011\nRBP: ffffc90000388550 R08: 0000000000000003 R09: ffffffff846d9a65\nR10: 0000000000000002 R11: ffff88814f884980 R12: dffffc0000000000\nR13: ffff88810dbee000 R14: 0000000000000010 R15: ffff888150084000\nFS: 0000000000000000(0000) GS:ffff8881f6b00000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000000020000180 CR3: 000000014ee5b000 CR4: 00000000003506e0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n\u003cIRQ\u003e\n[\u003cffffffff8507734f\u003e] ip6_finish_output2+0x33f/0x1ae0 net/ipv6/ip6_output.c:83\n[\u003cffffffff85062766\u003e] __ip6_finish_output net/ipv6/ip6_output.c:200 [inline]\n[\u003cffffffff85062766\u003e] ip6_finish_output+0x6c6/0xb10 net/ipv6/ip6_output.c:211\n[\u003cffffffff85061f8c\u003e] NF_HOOK_COND include/linux/netfilter.h:298 [inline]\n[\u003cffffffff85061f8c\u003e] ip6_output+0x2bc/0x3d0 net/ipv6/ip6_output.c:232\n[\u003cffffffff852071cf\u003e] dst_output include/net/dst.h:444 [inline]\n[\u003cffffffff852071cf\u003e] ip6_local_out+0x10f/0x140 net/ipv6/output_core.c:161\n[\u003cffffffff83618fb4\u003e] ipvlan_process_v6_outbound drivers/net/ipvlan/ipvlan_core.c:483 [inline]\n[\u003cffffffff83618fb4\u003e] ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:529 [inline]\n[\u003cffffffff83618fb4\u003e] ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:602 [inline]\n[\u003cffffffff83618fb4\u003e] ipvlan_queue_xmit+0x1174/0x1be0 drivers/net/ipvlan/ipvlan_core.c:677\n[\u003cffffffff8361ddd9\u003e] ipvlan_start_xmit+0x49/0x100 drivers/net/ipvlan/ipvlan_main.c:229\n[\u003cffffffff84763fc0\u003e] netdev_start_xmit include/linux/netdevice.h:4925 [inline]\n[\u003cffffffff84763fc0\u003e] xmit_one net/core/dev.c:3644 [inline]\n[\u003cffffffff84763fc0\u003e] dev_hard_start_xmit+0x320/0x980 net/core/dev.c:3660\n[\u003cffffffff8494c650\u003e] sch_direct_xmit+0x2a0/0x9c0 net/sched/sch_generic.c:342\n[\u003cffffffff8494d883\u003e] qdisc_restart net/sched/sch_generic.c:407 [inline]\n[\u003cffffffff8494d883\u003e] __qdisc_run+0xb13/0x1e70 net/sched/sch_generic.c:415\n[\u003cffffffff8478c426\u003e] qdisc_run+0xd6/0x260 include/net/pkt_sched.h:125\n[\u003cffffffff84796eac\u003e] net_tx_action+0x7ac/0x940 net/core/dev.c:5247\n[\u003cffffffff858002bd\u003e] __do_softirq+0x2bd/0x9bd kernel/softirq.c:599\n[\u003cffffffff814c3fe8\u003e] invoke_softirq kernel/softirq.c:430 [inline]\n[\u003cffffffff814c3fe8\u003e] __irq_exit_rcu+0xc8/0x170 kernel/softirq.c:683\n[\u003cffffffff814c3f09\u003e] irq_exit_rcu+0x9/0x20 kernel/softirq.c:695"
          }
        ],
        "id": "CVE-2023-53831",
        "lastModified": "2026-06-17T06:46:08.910",
        "metrics": {},
        "published": "2025-12-09T16:17:22.017",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/41f10a4d78fe69d685a3172e6884297f233dcf95"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/7586a66b9c4f1b8a825ea1dfa3a91aad5cc7b89b"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/895dc4c47171a20035cdaa8d74c1c1e97f2fc974"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/9036b6342fcdab190d6edce3dd447859c1de90fc"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/a3e0fdf71bbe031de845e8e08ed7fba49f9c702c"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/b1f5b890b89cb38a6c0bac91984d56cd69808e8c"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/e918d0211ffbaf039447334c3460cafee1ce0157"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/ed4e0adfa407ab65dd73b8862ebf2f308a0349d2"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Deferred"
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-06-30T10:22:03+00:00",
      "cve": "CVE-2023-53831",
      "id": "CVE-2023-53831",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:known_affected": "198",
      "product_status:known_not_affected": "76",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: net: read sk-\u003esk_family once in sk_mc_loop()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-53831.json",
      "version": "3"
    }
  }
}



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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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.