{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2025-21719", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-21719", "idYear": 2025, "status": "PUBLISHED", "publishedAt": "2025-02-27T02:07:28.573Z", "updatedAt": "2026-10-15T21:51:52.573Z", "importedAt": "2026-10-24T01:57:29.455Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "ipmr: do not call mr_mfc_uses_dev() for unres entries", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nipmr: do not call mr_mfc_uses_dev() for unres entries\n\nsyzbot found that calling mr_mfc_uses_dev() for unres entries\nwould crash [1], because c->mfc_un.res.minvif / c->mfc_un.res.maxvif\nalias to \"struct sk_buff_head unresolved\", which contain two pointers.\n\nThis code never worked, lets remove it.\n\n[1]\nUnable to handle kernel paging request at virtual address ffff5fff2d536613\nKASAN: maybe wild-memory-access in range [0xfffefff96a9b3098-0xfffefff96a9b309f]\nModules linked in:\nCPU: 1 UID: 0 PID: 7321 Comm: syz.0.16 Not tainted 6.13.0-rc7-syzkaller-g1950a0af2d55 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024\npstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n pc : mr_mfc_uses_dev net/ipv4/ipmr_base.c:290 [inline]\n pc : mr_table_dump+0x5a4/0x8b0 net/ipv4/ipmr_base.c:334\n lr : mr_mfc_uses_dev net/ipv4/ipmr_base.c:289 [inline]\n lr : mr_table_dump+0x694/0x8b0 net/ipv4/ipmr_base.c:334\nCall trace:\n mr_mfc_uses_dev net/ipv4/ipmr_base.c:290 [inline] (P)\n mr_table_dump+0x5a4/0x8b0 net/ipv4/ipmr_base.c:334 (P)\n mr_rtm_dumproute+0x254/0x454 net/ipv4/ipmr_base.c:382\n ipmr_rtm_dumproute+0x248/0x4b4 net/ipv4/ipmr.c:2648\n rtnl_dump_all+0x2e4/0x4e8 net/core/rtnetlink.c:4327\n rtnl_dumpit+0x98/0x1d0 net/core/rtnetlink.c:6791\n netlink_dump+0x4f0/0xbc0 net/netlink/af_netlink.c:2317\n netlink_recvmsg+0x56c/0xe64 net/netlink/af_netlink.c:1973\n sock_recvmsg_nosec net/socket.c:1033 [inline]\n sock_recvmsg net/socket.c:1055 [inline]\n sock_read_iter+0x2d8/0x40c net/socket.c:1125\n new_sync_read fs/read_write.c:484 [inline]\n vfs_read+0x740/0x970 fs/read_write.c:565\n ksys_read+0x15c/0x26c fs/read_write.c:708", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "cb167893f41e21e6bd283d78e53489289dc0592d", "status": "affected", "versionType": "git", "lessThan": "71a0fcb68c0a5f3ec912b540cd5d72148e6ee5f1" }, { "version": "cb167893f41e21e6bd283d78e53489289dc0592d", "status": "affected", "versionType": "git", "lessThan": "53df27fd38f84bd3cd6b004eb4ff3c4903114f1d" }, { "version": "cb167893f41e21e6bd283d78e53489289dc0592d", "status": "affected", "versionType": "git", "lessThan": "547ef7e8cbb98f966c8719a3e15d4e078aaa9b47" }, { "version": "cb167893f41e21e6bd283d78e53489289dc0592d", "status": "affected", "versionType": "git", "lessThan": "57177c5f47a8da852f8d76cf6945cf803f8bb9e5" }, { "version": "cb167893f41e21e6bd283d78e53489289dc0592d", "status": "affected", "versionType": "git", "lessThan": "b379b3162ff55a70464c6a934ae9bf0497478a62" }, { "version": "cb167893f41e21e6bd283d78e53489289dc0592d", "status": "affected", "versionType": "git", "lessThan": "a099834a51ccf9bbba3de86a251b3433539abfde" }, { "version": "cb167893f41e21e6bd283d78e53489289dc0592d", "status": "affected", "versionType": "git", "lessThan": "26bb7d991f04eeef47dfad23e533834995c26f7a" }, { "version": "cb167893f41e21e6bd283d78e53489289dc0592d", "status": "affected", "versionType": "git", "lessThan": "15a901361ec3fb1c393f91880e1cbf24ec0a88bd" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "4.20", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "4.20" }, { "version": "5.4.291", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.4.*" }, { "version": "5.10.235", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.179", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "6.1.129", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.6.76", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.6.*" }, { "version": "6.12.13", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.12.*" }, { "version": "6.13.2", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.13.*" }, { "version": "6.14", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }