{ "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-2024-26615", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-26615", "idYear": 2024, "status": "PUBLISHED", "publishedAt": "2024-02-29T15:52:18.843Z", "updatedAt": "2026-05-11T20:00:49.787Z", "importedAt": "2026-10-24T01:57:07.518Z", "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": "net/smc: fix illegal rmb_desc access in SMC-D connection dump", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/smc: fix illegal rmb_desc access in SMC-D connection dump\n\nA crash was found when dumping SMC-D connections. It can be reproduced\nby following steps:\n\n- run nginx/wrk test:\n smc_run nginx\n smc_run wrk -t 16 -c 1000 -d -H 'Connection: Close' \n\n- continuously dump SMC-D connections in parallel:\n watch -n 1 'smcss -D'\n\n BUG: kernel NULL pointer dereference, address: 0000000000000030\n CPU: 2 PID: 7204 Comm: smcss Kdump: loaded Tainted: G\tE 6.7.0+ #55\n RIP: 0010:__smc_diag_dump.constprop.0+0x5e5/0x620 [smc_diag]\n Call Trace:\n \n ? __die+0x24/0x70\n ? page_fault_oops+0x66/0x150\n ? exc_page_fault+0x69/0x140\n ? asm_exc_page_fault+0x26/0x30\n ? __smc_diag_dump.constprop.0+0x5e5/0x620 [smc_diag]\n ? __kmalloc_node_track_caller+0x35d/0x430\n ? __alloc_skb+0x77/0x170\n smc_diag_dump_proto+0xd0/0xf0 [smc_diag]\n smc_diag_dump+0x26/0x60 [smc_diag]\n netlink_dump+0x19f/0x320\n __netlink_dump_start+0x1dc/0x300\n smc_diag_handler_dump+0x6a/0x80 [smc_diag]\n ? __pfx_smc_diag_dump+0x10/0x10 [smc_diag]\n sock_diag_rcv_msg+0x121/0x140\n ? __pfx_sock_diag_rcv_msg+0x10/0x10\n netlink_rcv_skb+0x5a/0x110\n sock_diag_rcv+0x28/0x40\n netlink_unicast+0x22a/0x330\n netlink_sendmsg+0x1f8/0x420\n __sock_sendmsg+0xb0/0xc0\n ____sys_sendmsg+0x24e/0x300\n ? copy_msghdr_from_user+0x62/0x80\n ___sys_sendmsg+0x7c/0xd0\n ? __do_fault+0x34/0x160\n ? do_read_fault+0x5f/0x100\n ? do_fault+0xb0/0x110\n ? __handle_mm_fault+0x2b0/0x6c0\n __sys_sendmsg+0x4d/0x80\n do_syscall_64+0x69/0x180\n entry_SYSCALL_64_after_hwframe+0x6e/0x76\n\nIt is possible that the connection is in process of being established\nwhen we dump it. Assumed that the connection has been registered in a\nlink group by smc_conn_create() but the rmb_desc has not yet been\ninitialized by smc_buf_create(), thus causing the illegal access to\nconn->rmb_desc. So fix it by checking before dump.", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "4b1b7d3b30a6d32ac1a1dcede284e76ef8a8542d", "status": "affected", "versionType": "git", "lessThan": "27aea64838914c6122db5b8bd4bed865c9736f22" }, { "version": "4b1b7d3b30a6d32ac1a1dcede284e76ef8a8542d", "status": "affected", "versionType": "git", "lessThan": "1fea9969b81c67d0cb1611d1b8b7d19049d937be" }, { "version": "4b1b7d3b30a6d32ac1a1dcede284e76ef8a8542d", "status": "affected", "versionType": "git", "lessThan": "5fed92ca32eafbfae8b6bee8ca34cca71c6a8b6d" }, { "version": "4b1b7d3b30a6d32ac1a1dcede284e76ef8a8542d", "status": "affected", "versionType": "git", "lessThan": "68b888d51ac82f2b96bf5e077a31d76afcdef25a" }, { "version": "4b1b7d3b30a6d32ac1a1dcede284e76ef8a8542d", "status": "affected", "versionType": "git", "lessThan": "6994dba06321e3c48fdad0ba796a063d9d82183a" }, { "version": "4b1b7d3b30a6d32ac1a1dcede284e76ef8a8542d", "status": "affected", "versionType": "git", "lessThan": "a164c2922675d7051805cdaf2b07daffe44f20d9" }, { "version": "4b1b7d3b30a6d32ac1a1dcede284e76ef8a8542d", "status": "affected", "versionType": "git", "lessThan": "8f3f9186e5bb96a9c9654c41653210e3ea7e48a6" }, { "version": "4b1b7d3b30a6d32ac1a1dcede284e76ef8a8542d", "status": "affected", "versionType": "git", "lessThan": "dbc153fd3c142909e564bb256da087e13fbf239c" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "4.19", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "4.19" }, { "version": "4.19.307", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.19.*" }, { "version": "5.4.269", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.4.*" }, { "version": "5.10.210", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.149", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "6.1.76", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.6.15", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.6.*" }, { "version": "6.7.3", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.7.*" }, { "version": "6.8", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }