{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2025-38032", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T04:51:23.978Z", "datePublished": "2025-06-18T09:33:19.542Z", "dateUpdated": "2026-05-11T21:19:57.414Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T21:19:57.414Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmr: consolidate the ipmr_can_free_table() checks.\n\nGuoyu Yin reported a splat in the ipmr netns cleanup path:\n\nWARNING: CPU: 2 PID: 14564 at net/ipv4/ipmr.c:440 ipmr_free_table net/ipv4/ipmr.c:440 [inline]\nWARNING: CPU: 2 PID: 14564 at net/ipv4/ipmr.c:440 ipmr_rules_exit+0x135/0x1c0 net/ipv4/ipmr.c:361\nModules linked in:\nCPU: 2 UID: 0 PID: 14564 Comm: syz.4.838 Not tainted 6.14.0 #1\nHardware name: QEMU Ubuntu 24.04 PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014\nRIP: 0010:ipmr_free_table net/ipv4/ipmr.c:440 [inline]\nRIP: 0010:ipmr_rules_exit+0x135/0x1c0 net/ipv4/ipmr.c:361\nCode: ff df 48 c1 ea 03 80 3c 02 00 75 7d 48 c7 83 60 05 00 00 00 00 00 00 5b 5d 41 5c 41 5d 41 5e e9 71 67 7f 00 e8 4c 2d 8a fd 90 <0f> 0b 90 eb 93 e8 41 2d 8a fd 0f b6 2d 80 54 ea 01 31 ff 89 ee e8\nRSP: 0018:ffff888109547c58 EFLAGS: 00010293\nRAX: 0000000000000000 RBX: ffff888108c12dc0 RCX: ffffffff83e09868\nRDX: ffff8881022b3300 RSI: ffffffff83e098d4 RDI: 0000000000000005\nRBP: ffff888104288000 R08: 0000000000000000 R09: ffffed10211825c9\nR10: 0000000000000001 R11: ffff88801816c4a0 R12: 0000000000000001\nR13: ffff888108c13320 R14: ffff888108c12dc0 R15: fffffbfff0b74058\nFS: 00007f84f39316c0(0000) GS:ffff88811b100000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007f84f3930f98 CR3: 0000000113b56000 CR4: 0000000000350ef0\nCall Trace:\n \n ipmr_net_exit_batch+0x50/0x90 net/ipv4/ipmr.c:3160\n ops_exit_list+0x10c/0x160 net/core/net_namespace.c:177\n setup_net+0x47d/0x8e0 net/core/net_namespace.c:394\n copy_net_ns+0x25d/0x410 net/core/net_namespace.c:516\n create_new_namespaces+0x3f6/0xaf0 kernel/nsproxy.c:110\n unshare_nsproxy_namespaces+0xc3/0x180 kernel/nsproxy.c:228\n ksys_unshare+0x78d/0x9a0 kernel/fork.c:3342\n __do_sys_unshare kernel/fork.c:3413 [inline]\n __se_sys_unshare kernel/fork.c:3411 [inline]\n __x64_sys_unshare+0x31/0x40 kernel/fork.c:3411\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xa6/0x1a0 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\nRIP: 0033:0x7f84f532cc29\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 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48\nRSP: 002b:00007f84f3931038 EFLAGS: 00000246 ORIG_RAX: 0000000000000110\nRAX: ffffffffffffffda RBX: 00007f84f5615fa0 RCX: 00007f84f532cc29\nRDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040000400\nRBP: 00007f84f53fba18 R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\nR13: 0000000000000000 R14: 00007f84f5615fa0 R15: 00007fff51c5f328\n \n\nThe running kernel has CONFIG_IP_MROUTE_MULTIPLE_TABLES disabled, and\nthe sanity check for such build is still too loose.\n\nAddress the issue consolidating the relevant sanity check in a single\nhelper regardless of the kernel configuration. Also share it between\nthe ipv4 and ipv6 code." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "include/linux/mroute_base.h", "net/ipv4/ipmr.c", "net/ipv6/ip6mr.c" ], "versions": [ { "version": "50b94204446e1215af081fd713d7d566d9258e35", "lessThan": "1c518ae98302ab37786d5ba5d43e9ac6d6f894e3", "status": "affected", "versionType": "git" }, { "version": "50b94204446e1215af081fd713d7d566d9258e35", "lessThan": "c46286fdd6aa1d0e33c245bcffe9ff2428a777bd", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "include/linux/mroute_base.h", "net/ipv4/ipmr.c", "net/ipv6/ip6mr.c" ], "versions": [ { "version": "6.13", "status": "affected" }, { "version": "0", "lessThan": "6.13", "status": "unaffected", "versionType": "semver" }, { "version": "6.14.9", "lessThanOrEqual": "6.14.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.15", "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": "6.13", "versionEndExcluding": "6.14.9" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "6.15" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/1c518ae98302ab37786d5ba5d43e9ac6d6f894e3" }, { "url": "https://git.kernel.org/stable/c/c46286fdd6aa1d0e33c245bcffe9ff2428a777bd" } ], "title": "mr: consolidate the ipmr_can_free_table() checks.", "x_generator": { "engine": "bippy-1.2.0" } } } }