{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-38500","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-04-16T04:51:24.022Z","datePublished":"2025-08-12T16:02:42.363Z","dateUpdated":"2026-05-11T21:29:13.266Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T21:29:13.266Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nxfrm: interface: fix use-after-free after changing collect_md xfrm interface\n\ncollect_md property on xfrm interfaces can only be set on device creation,\nthus xfrmi_changelink() should fail when called on such interfaces.\n\nThe check to enforce this was done only in the case where the xi was\nreturned from xfrmi_locate() which doesn't look for the collect_md\ninterface, and thus the validation was never reached.\n\nCalling changelink would thus errornously place the special interface xi\nin the xfrmi_net->xfrmi hash, but since it also exists in the\nxfrmi_net->collect_md_xfrmi pointer it would lead to a double free when\nthe net namespace was taken down [1].\n\nChange the check to use the xi from netdev_priv which is available earlier\nin the function to prevent changes in xfrm collect_md interfaces.\n\n[1] resulting oops:\n[    8.516540] kernel BUG at net/core/dev.c:12029!\n[    8.516552] Oops: invalid opcode: 0000 [#1] SMP NOPTI\n[    8.516559] CPU: 0 UID: 0 PID: 12 Comm: kworker/u80:0 Not tainted 6.15.0-virtme #5 PREEMPT(voluntary)\n[    8.516565] Hardware name: QEMU Ubuntu 24.04 PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014\n[    8.516569] Workqueue: netns cleanup_net\n[    8.516579] RIP: 0010:unregister_netdevice_many_notify+0x101/0xab0\n[    8.516590] Code: 90 0f 0b 90 48 8b b0 78 01 00 00 48 8b 90 80 01 00 00 48 89 56 08 48 89 32 4c 89 80 78 01 00 00 48 89 b8 80 01 00 00 eb ac 90 <0f> 0b 48 8b 45 00 4c 8d a0 88 fe ff ff 48 39 c5 74 5c 41 80 bc 24\n[    8.516593] RSP: 0018:ffffa93b8006bd30 EFLAGS: 00010206\n[    8.516598] RAX: ffff98fe4226e000 RBX: ffffa93b8006bd58 RCX: ffffa93b8006bc60\n[    8.516601] RDX: 0000000000000004 RSI: 0000000000000000 RDI: dead000000000122\n[    8.516603] RBP: ffffa93b8006bdd8 R08: dead000000000100 R09: ffff98fe4133c100\n[    8.516605] R10: 0000000000000000 R11: 00000000000003d2 R12: ffffa93b8006be00\n[    8.516608] R13: ffffffff96c1a510 R14: ffffffff96c1a510 R15: ffffa93b8006be00\n[    8.516615] FS:  0000000000000000(0000) GS:ffff98fee73b7000(0000) knlGS:0000000000000000\n[    8.516619] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[    8.516622] CR2: 00007fcd2abd0700 CR3: 000000003aa40000 CR4: 0000000000752ef0\n[    8.516625] PKRU: 55555554\n[    8.516627] Call Trace:\n[    8.516632]  <TASK>\n[    8.516635]  ? rtnl_is_locked+0x15/0x20\n[    8.516641]  ? unregister_netdevice_queue+0x29/0xf0\n[    8.516650]  ops_undo_list+0x1f2/0x220\n[    8.516659]  cleanup_net+0x1ad/0x2e0\n[    8.516664]  process_one_work+0x160/0x380\n[    8.516673]  worker_thread+0x2aa/0x3c0\n[    8.516679]  ? __pfx_worker_thread+0x10/0x10\n[    8.516686]  kthread+0xfb/0x200\n[    8.516690]  ? __pfx_kthread+0x10/0x10\n[    8.516693]  ? __pfx_kthread+0x10/0x10\n[    8.516697]  ret_from_fork+0x82/0xf0\n[    8.516705]  ? __pfx_kthread+0x10/0x10\n[    8.516709]  ret_from_fork_asm+0x1a/0x30\n[    8.516718]  </TASK>"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/xfrm/xfrm_interface_core.c"],"versions":[{"version":"abc340b38ba25cd6c7aa2c0bd9150d30738c82d0","lessThan":"a8d4748b954584ab7bd800f1a4e46d5b0eeb5ce4","status":"affected","versionType":"git"},{"version":"abc340b38ba25cd6c7aa2c0bd9150d30738c82d0","lessThan":"bfebdb85496e1da21d3cf05de099210915c3e706","status":"affected","versionType":"git"},{"version":"abc340b38ba25cd6c7aa2c0bd9150d30738c82d0","lessThan":"5918c3f4800a3aef2173865e5903370f21e24f47","status":"affected","versionType":"git"},{"version":"abc340b38ba25cd6c7aa2c0bd9150d30738c82d0","lessThan":"69a31f7a6a81f5ffd3812c442e09ff0be22960f1","status":"affected","versionType":"git"},{"version":"abc340b38ba25cd6c7aa2c0bd9150d30738c82d0","lessThan":"a90b2a1aaacbcf0f91d7e4868ad6c51c5dee814b","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/xfrm/xfrm_interface_core.c"],"versions":[{"version":"6.1","status":"affected"},{"version":"0","lessThan":"6.1","status":"unaffected","versionType":"semver"},{"version":"6.1.148","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.101","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.41","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.15.9","lessThanOrEqual":"6.15.*","status":"unaffected","versionType":"semver"},{"version":"6.16","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"6.1.148"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"6.6.101"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"6.12.41"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"6.15.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"6.16"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/a8d4748b954584ab7bd800f1a4e46d5b0eeb5ce4"},{"url":"https://git.kernel.org/stable/c/bfebdb85496e1da21d3cf05de099210915c3e706"},{"url":"https://git.kernel.org/stable/c/5918c3f4800a3aef2173865e5903370f21e24f47"},{"url":"https://git.kernel.org/stable/c/69a31f7a6a81f5ffd3812c442e09ff0be22960f1"},{"url":"https://git.kernel.org/stable/c/a90b2a1aaacbcf0f91d7e4868ad6c51c5dee814b"}],"title":"xfrm: interface: fix use-after-free after changing collect_md xfrm interface","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"problemTypes":[{"descriptions":[{"type":"CWE","cweId":"CWE-416","lang":"en","description":"CWE-416 Use After Free"}]}],"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.8,"attackVector":"LOCAL","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2025-10-01T18:10:59.896187Z","id":"CVE-2025-38500","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2025-10-01T18:12:31.018Z"}},{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2025-11-03T17:39:09.573Z"}}]}}