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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: x_tables: fix LED ID check in led_tg_check()\n\nSyzbot has reported the following BUG detected by KASAN:\n\nBUG: KASAN: slab-out-of-bounds in strlen+0x58/0x70\nRead of size 1 at addr ffff8881022da0c8 by task repro/5879\n...\nCall Trace:\n \u003cTASK\u003e\n dump_stack_lvl+0x241/0x360\n ? __pfx_dump_stack_lvl+0x10/0x10\n ? __pfx__printk+0x10/0x10\n ? _printk+0xd5/0x120\n ? __virt_addr_valid+0x183/0x530\n ? __virt_addr_valid+0x183/0x530\n print_report+0x169/0x550\n ? __virt_addr_valid+0x183/0x530\n ? __virt_addr_valid+0x183/0x530\n ? __virt_addr_valid+0x45f/0x530\n ? __phys_addr+0xba/0x170\n ? strlen+0x58/0x70\n kasan_report+0x143/0x180\n ? strlen+0x58/0x70\n strlen+0x58/0x70\n kstrdup+0x20/0x80\n led_tg_check+0x18b/0x3c0\n xt_check_target+0x3bb/0xa40\n ? __pfx_xt_check_target+0x10/0x10\n ? stack_depot_save_flags+0x6e4/0x830\n ? nft_target_init+0x174/0xc30\n nft_target_init+0x82d/0xc30\n ? __pfx_nft_target_init+0x10/0x10\n ? nf_tables_newrule+0x1609/0x2980\n ? nf_tables_newrule+0x1609/0x2980\n ? rcu_is_watching+0x15/0xb0\n ? nf_tables_newrule+0x1609/0x2980\n ? nf_tables_newrule+0x1609/0x2980\n ? __kmalloc_noprof+0x21a/0x400\n nf_tables_newrule+0x1860/0x2980\n ? __pfx_nf_tables_newrule+0x10/0x10\n ? __nla_parse+0x40/0x60\n nfnetlink_rcv+0x14e5/0x2ab0\n ? __pfx_validate_chain+0x10/0x10\n ? __pfx_nfnetlink_rcv+0x10/0x10\n ? __lock_acquire+0x1384/0x2050\n ? netlink_deliver_tap+0x2e/0x1b0\n ? __pfx_lock_release+0x10/0x10\n ? netlink_deliver_tap+0x2e/0x1b0\n netlink_unicast+0x7f8/0x990\n ? __pfx_netlink_unicast+0x10/0x10\n ? __virt_addr_valid+0x183/0x530\n ? __check_object_size+0x48e/0x900\n netlink_sendmsg+0x8e4/0xcb0\n ? __pfx_netlink_sendmsg+0x10/0x10\n ? aa_sock_msg_perm+0x91/0x160\n ? __pfx_netlink_sendmsg+0x10/0x10\n __sock_sendmsg+0x223/0x270\n ____sys_sendmsg+0x52a/0x7e0\n ? __pfx_____sys_sendmsg+0x10/0x10\n __sys_sendmsg+0x292/0x380\n ? __pfx___sys_sendmsg+0x10/0x10\n ? lockdep_hardirqs_on_prepare+0x43d/0x780\n ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10\n ? exc_page_fault+0x590/0x8c0\n ? do_syscall_64+0xb6/0x230\n do_syscall_64+0xf3/0x230\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n...\n \u003c/TASK\u003e\n\nSince an invalid (without \u0027\\0\u0027 byte at all) byte sequence may be passed\nfrom userspace, add an extra check to ensure that such a sequence is\nrejected as possible ID and so never passed to \u0027kstrdup()\u0027 and further."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The vulnerable path is entered only through local syscalls \u2014 `sendmsg()` on a NETLINK_NETFILTER socket (nf_tables/nft_compat) or `setsockopt(IPT_SO_SET_REPLACE)` on the legacy iptables interface. No remote peer can supply the malformed `xt_led_info` blob.\nAC:L - The attacker fully controls all 40 bytes of the target info blob and simply omits any NUL byte, making `strlen()` read out of bounds deterministically on every attempt; there is no race, no memory-layout precondition, and the required xt_LED module is present in stock distro and embedded kernel configs.\nPR:L - `nf_tables_newrule` requires CAP_NET_ADMIN only in the network namespace\u0027s owning user namespace, which any unprivileged user obtains with `unshare -Urn` \u2014 exactly how the syzbot reproducer reached it.\nUI:N - The attacker performs the entire sequence \u2014 create netns, add an nftables rule with an xt LED target \u2014 with no action by any other user, and reads the leaked bytes back from sysfs itself.\nS:U - The out-of-bounds read stays within the kernel\u0027s own heap and the disclosed data is exposed through kernel-managed interfaces; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - This is an unbounded slab out-of-bounds read whose contents are not merely touched but `kstrdup()`\u0027d into a globally registered LED trigger name, then printed into the world-readable (0644) `/sys/class/leds/*/trigger` file, plus an `-EEXIST` collision oracle from `led_trigger_register()` \u2014 giving an unprivileged user a practical adjacent-kernel-heap disclosure primitive that can leak pointers and defeat KASLR/heap-layout hardening.\nI:N - `kstrdup()` allocates exactly `strlen()+1` bytes and the sysfs printer clamps with `vscnprintf`, so no memory is written out of bounds and no kernel data structure is corrupted by the flaw.\nA:H - The `strlen()` walk continues until it happens to find a zero byte and can fault on a KFENCE guard page \u2014 enabled by default in production distro and Android kernels \u2014 or run past mapped memory, oopsing the kernel; on KASAN builds it panics outright, and the attacker can repeat the attempt arbitrarily."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T11:45:47.823Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/147a42bb02de8735cb08476be6d0917987d022c2"
        },
        {
          "url": "https://git.kernel.org/stable/c/ad28612ebae1fcc1104bd432e99e99d87f6bfe09"
        },
        {
          "url": "https://git.kernel.org/stable/c/36a9d94dac28beef6b8abba46ba8874320d3e800"
        },
        {
          "url": "https://git.kernel.org/stable/c/ab9916321c95f5280b72b4c5055e269f98627efe"
        },
        {
          "url": "https://git.kernel.org/stable/c/a9bcc0b70d9baf3ff005874489a0dc9d023b54c3"
        },
        {
          "url": "https://git.kernel.org/stable/c/c40c96d98e536fc1daaa125c2332b988615e30a4"
        },
        {
          "url": "https://git.kernel.org/stable/c/04317f4eb2aad312ad85c1a17ad81fe75f1f9bc7"
        }
      ],
      "title": "netfilter: x_tables: fix LED ID check in led_tg_check()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-56650",
    "datePublished": "2024-12-27T15:02:50.098Z",
    "dateReserved": "2024-12-27T15:00:39.840Z",
    "dateUpdated": "2026-08-05T11:45:47.823Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "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"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2024-56658",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-03-06T16:07:39.771240Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-416",
                "description": "CWE-416 Use After Free",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-03-06T16:14:32.574Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T20:51:59.582Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "include/net/net_namespace.h",
            "net/core/net_namespace.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "c261dcd61c9e88a8f1a66654354d32295a975230",
              "status": "affected",
              "version": "a8a572a6b5f2a79280d6e302cb3c1cb1fbaeb3e8",
              "versionType": "git"
            },
            {
              "lessThan": "dac465986a4a38cd2f13e934f562b6ca344e5720",
              "status": "affected",
              "version": "a8a572a6b5f2a79280d6e302cb3c1cb1fbaeb3e8",
              "versionType": "git"
            },
            {
              "lessThan": "3267b254dc0a04dfa362a2be24573cfa6d2d78f5",
              "status": "affected",
              "version": "a8a572a6b5f2a79280d6e302cb3c1cb1fbaeb3e8",
              "versionType": "git"
            },
            {
              "lessThan": "b7a79e51297f7b82adb687086f5cb2da446f1e40",
              "status": "affected",
              "version": "a8a572a6b5f2a79280d6e302cb3c1cb1fbaeb3e8",
              "versionType": "git"
            },
            {
              "lessThan": "6610c7f8a8d47fd1123eed55ba8c11c2444d8842",
              "status": "affected",
              "version": "a8a572a6b5f2a79280d6e302cb3c1cb1fbaeb3e8",
              "versionType": "git"
            },
            {
              "lessThan": "0f6ede9fbc747e2553612271bce108f7517e7a45",
              "status": "affected",
              "version": "a8a572a6b5f2a79280d6e302cb3c1cb1fbaeb3e8",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "3e29fa5b742479f73400468314a1c6b9cf553ee4",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ce43f6a650a6689551a217276fb0dcca33790425",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "eeca98948d8c4922e6deb16bfc9ee0bd9902dbb0",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "1bd631fc9a4515878c1bb7effd19335d2f2d87c2",
              "versionType": "git"
            },
            {
              "lessThan": "3.13",
              "status": "affected",
              "version": "3.12.54",
              "versionType": "semver"
            },
            {
              "lessThan": "3.19",
              "status": "affected",
              "version": "3.18.27",
              "versionType": "semver"
            },
            {
              "lessThan": "4.2",
              "status": "affected",
              "version": "4.1.17",
              "versionType": "semver"
            },
            {
              "lessThan": "4.4",
              "status": "affected",
              "version": "4.3.5",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "include/net/net_namespace.h",
            "net/core/net_namespace.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.4"
            },
            {
              "lessThan": "4.4",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.237",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.181",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.121",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.67",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.13",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.237",
                  "versionStartIncluding": "4.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.181",
                  "versionStartIncluding": "4.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.121",
                  "versionStartIncluding": "4.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.67",
                  "versionStartIncluding": "4.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.6",
                  "versionStartIncluding": "4.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.13",
                  "versionStartIncluding": "4.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "3.12.54",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "3.18.27",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "4.1.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "4.3.5",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: defer final \u0027struct net\u0027 free in netns dismantle\n\nIlya reported a slab-use-after-free in dst_destroy [1]\n\nIssue is in xfrm6_net_init() and xfrm4_net_init() :\n\nThey copy xfrm[46]_dst_ops_template into net-\u003exfrm.xfrm[46]_dst_ops.\n\nBut net structure might be freed before all the dst callbacks are\ncalled. So when dst_destroy() calls later :\n\nif (dst-\u003eops-\u003edestroy)\n    dst-\u003eops-\u003edestroy(dst);\n\ndst-\u003eops points to the old net-\u003exfrm.xfrm[46]_dst_ops, which has been freed.\n\nSee a relevant issue fixed in :\n\nac888d58869b (\"net: do not delay dst_entries_add() in dst_release()\")\n\nA fix is to queue the \u0027struct net\u0027 to be freed after one\nanother cleanup_net() round (and existing rcu_barrier())\n\n[1]\n\nBUG: KASAN: slab-use-after-free in dst_destroy (net/core/dst.c:112)\nRead of size 8 at addr ffff8882137ccab0 by task swapper/37/0\nDec 03 05:46:18 kernel:\nCPU: 37 UID: 0 PID: 0 Comm: swapper/37 Kdump: loaded Not tainted 6.12.0 #67\nHardware name: Red Hat KVM/RHEL, BIOS 1.16.1-1.el9 04/01/2014\nCall Trace:\n \u003cIRQ\u003e\ndump_stack_lvl (lib/dump_stack.c:124)\nprint_address_description.constprop.0 (mm/kasan/report.c:378)\n? dst_destroy (net/core/dst.c:112)\nprint_report (mm/kasan/report.c:489)\n? dst_destroy (net/core/dst.c:112)\n? kasan_addr_to_slab (mm/kasan/common.c:37)\nkasan_report (mm/kasan/report.c:603)\n? dst_destroy (net/core/dst.c:112)\n? rcu_do_batch (kernel/rcu/tree.c:2567)\ndst_destroy (net/core/dst.c:112)\nrcu_do_batch (kernel/rcu/tree.c:2567)\n? __pfx_rcu_do_batch (kernel/rcu/tree.c:2491)\n? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4339 kernel/locking/lockdep.c:4406)\nrcu_core (kernel/rcu/tree.c:2825)\nhandle_softirqs (kernel/softirq.c:554)\n__irq_exit_rcu (kernel/softirq.c:589 kernel/softirq.c:428 kernel/softirq.c:637)\nirq_exit_rcu (kernel/softirq.c:651)\nsysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049)\n \u003c/IRQ\u003e\n \u003cTASK\u003e\nasm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702)\nRIP: 0010:default_idle (./arch/x86/include/asm/irqflags.h:37 ./arch/x86/include/asm/irqflags.h:92 arch/x86/kernel/process.c:743)\nCode: 00 4d 29 c8 4c 01 c7 4c 29 c2 e9 6e ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 90 0f 00 2d c7 c9 27 00 fb f4 \u003cfa\u003e c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 90\nRSP: 0018:ffff888100d2fe00 EFLAGS: 00000246\nRAX: 00000000001870ed RBX: 1ffff110201a5fc2 RCX: ffffffffb61a3e46\nRDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffb3d4d123\nRBP: 0000000000000000 R08: 0000000000000001 R09: ffffed11c7e1835d\nR10: ffff888e3f0c1aeb R11: 0000000000000000 R12: 0000000000000000\nR13: ffff888100d20000 R14: dffffc0000000000 R15: 0000000000000000\n? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:148)\n? cpuidle_idle_call (kernel/sched/idle.c:186)\ndefault_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118)\ncpuidle_idle_call (kernel/sched/idle.c:186)\n? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168)\n? lock_release (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5848)\n? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406)\n? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59)\ndo_idle (kernel/sched/idle.c:326)\ncpu_startup_entry (kernel/sched/idle.c:423 (discriminator 1))\nstart_secondary (arch/x86/kernel/smpboot.c:202 arch/x86/kernel/smpboot.c:282)\n? __pfx_start_secondary (arch/x86/kernel/smpboot.c:232)\n? soft_restart_cpu (arch/x86/kernel/head_64.S:452)\ncommon_startup_64 (arch/x86/kernel/head_64.S:414)\n \u003c/TASK\u003e\nDec 03 05:46:18 kernel:\nAllocated by task 12184:\nkasan_save_stack (mm/kasan/common.c:48)\nkasan_save_track (./arch/x86/include/asm/current.h:49 mm/kasan/common.c:60 mm/kasan/common.c:69)\n__kasan_slab_alloc (mm/kasan/common.c:319 mm/kasan/common.c:345)\nkmem_cache_alloc_noprof (mm/slub.c:4085 mm/slub.c:4134 mm/slub.c:4141)\ncopy_net_ns (net/core/net_namespace.c:421 net/core/net_namespace.c:480)\ncreate_new_namespaces\n---truncated---"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - Triggering requires local netns creation/teardown (`unshare`/`clone` with `CLONE_NEWNET`) combined with local `NETLINK_XFRM` configuration; there is no path by which a remote peer can drive the netns dismantle that frees `struct net`.\nAC:L - The attacker controls both sides of the race \u2014 it creates the netns, populates the xfrm policies/SAs that produce bundle dsts, and chooses when to tear the namespace down \u2014 and can loop the sequence indefinitely; the window is wide enough that it was hit incidentally on a normal production workload.\nPR:L - An unprivileged local user gets everything needed via `unshare -Urn`: `xfrm_user` is gated only by `netlink_net_capable(skb, CAP_NET_ADMIN)`, which checks `ns_capable()` against the new netns\u0027s own user namespace, so no real root is required.\nUI:N - The entire sequence \u2014 namespace creation, xfrm configuration, traffic generation, namespace destruction \u2014 is performed by the attacker\u0027s own process with no victim action.\nS:U - The corruption and its consequences are confined to the kernel\u0027s own security authority; no hypervisor, IOMMU, or other authority boundary is crossed.\nC:H - This is a slab use-after-free on a `SLAB_ACCOUNT` object the attacker can reclaim and spray; `dst_destroy()` reads pointers (`-\u003edestroy`, `-\u003ekmem_cachep`) out of the freed allocation, and controlling the reclaimed contents yields kernel memory disclosure primitives.\nI:H - The freed memory is read as a function-pointer table and immediately called (`dst-\u003eops-\u003edestroy(dst)`), and `dst-\u003eops-\u003ekmem_cachep` is fed to `kmem_cache_free()` \u2014 an indirect call plus an arbitrary-cache free through attacker-reclaimable heap memory, i.e. a control-flow-hijack primitive.\nA:H - The use-after-free reliably produces a KASAN-reported bad dereference in RCU softirq context, and dereferencing/calling stale slab contents panics or oopses the kernel even without successful exploitation."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T11:45:55.213Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/c261dcd61c9e88a8f1a66654354d32295a975230"
        },
        {
          "url": "https://git.kernel.org/stable/c/dac465986a4a38cd2f13e934f562b6ca344e5720"
        },
        {
          "url": "https://git.kernel.org/stable/c/3267b254dc0a04dfa362a2be24573cfa6d2d78f5"
        },
        {
          "url": "https://git.kernel.org/stable/c/b7a79e51297f7b82adb687086f5cb2da446f1e40"
        },
        {
          "url": "https://git.kernel.org/stable/c/6610c7f8a8d47fd1123eed55ba8c11c2444d8842"
        },
        {
          "url": "https://git.kernel.org/stable/c/0f6ede9fbc747e2553612271bce108f7517e7a45"
        }
      ],
      "title": "net: defer final \u0027struct net\u0027 free in netns dismantle",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-56658",
    "datePublished": "2024-12-27T15:06:21.516Z",
    "dateReserved": "2024-12-27T15:00:39.841Z",
    "dateUpdated": "2026-08-05T11:45:55.213Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}