{"cve":"CVE-2024-26626","nvd":{"published":"2024-03-06T07:15:12.810","modified":"2026-08-04T11:16:50.340","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nipmr: fix kernel panic when forwarding mcast packets\n\nThe stacktrace was:\n[   86.305548] BUG: kernel NULL pointer dereference, address: 0000000000000092\n[   86.306815] #PF: supervisor read access in kernel mode\n[   86.307717] #PF: error_code(0x0000) - not-present page\n[   86.308624] PGD 0 P4D 0\n[   86.309091] Oops: 0000 [#1] PREEMPT SMP NOPTI\n[   86.309883] CPU: 2 PID: 3139 Comm: pimd Tainted: G     U             6.8.0-6wind-knet #1\n[   86.311027] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.11.1-0-g0551a4be2c-prebuilt.qemu-project.org 04/01/2014\n[   86.312728] RIP: 0010:ip_mr_forward (/build/work/knet/net/ipv4/ipmr.c:1985)\n[ 86.313399] Code: f9 1f 0f 87 85 03 00 00 48 8d 04 5b 48 8d 04 83 49 8d 44 c5 00 48 8b 40 70 48 39 c2 0f 84 d9 00 00 00 49 8b 46 58 48 83 e0 fe <80> b8 92 00 00 00 00 0f 84 55 ff ff ff 49 83 47 38 01 45 85 e4 0f\n[   86.316565] RSP: 0018:ffffad21c0583ae0 EFLAGS: 00010246\n[   86.317497] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000\n[   86.318596] RDX: ffff9559cb46c000 RSI: 0000000000000000 RDI: 0000000000000000\n[   86.319627] RBP: ffffad21c0583b30 R08: 0000000000000000 R09: 0000000000000000\n[   86.320650] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001\n[   86.321672] R13: ffff9559c093a000 R14: ffff9559cc00b800 R15: ffff9559c09c1d80\n[   86.322873] FS:  00007f85db661980(0000) GS:ffff955a79d00000(0000) knlGS:0000000000000000\n[   86.324291] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[   86.325314] CR2: 0000000000000092 CR3: 000000002f13a000 CR4: 0000000000350ef0\n[   86.326589] Call Trace:\n[   86.327036]  <TASK>\n[   86.327434] ? show_regs (/build/work/knet/arch/x86/kernel/dumpstack.c:479)\n[   86.328049] ? __die (/build/work/knet/arch/x86/kernel/dumpstack.c:421 /build/work/knet/arch/x86/kernel/dumpstack.c:434)\n[   86.328508] ? page_fault_oops (/build/work/knet/arch/x86/mm/fault.c:707)\n[   86.329107] ? do_user_addr_fault (/build/work/knet/arch/x86/mm/fault.c:1264)\n[   86.329756] ? srso_return_thunk (/build/work/knet/arch/x86/lib/retpoline.S:223)\n[   86.330350] ? __irq_work_queue_local (/build/work/knet/kernel/irq_work.c:111 (discriminator 1))\n[   86.331013] ? exc_page_fault (/build/work/knet/./arch/x86/include/asm/paravirt.h:693 /build/work/knet/arch/x86/mm/fault.c:1515 /build/work/knet/arch/x86/mm/fault.c:1563)\n[   86.331702] ? asm_exc_page_fault (/build/work/knet/./arch/x86/include/asm/idtentry.h:570)\n[   86.332468] ? ip_mr_forward (/build/work/knet/net/ipv4/ipmr.c:1985)\n[   86.333183] ? srso_return_thunk (/build/work/knet/arch/x86/lib/retpoline.S:223)\n[   86.333920] ipmr_mfc_add (/build/work/knet/./include/linux/rcupdate.h:782 /build/work/knet/net/ipv4/ipmr.c:1009 /build/work/knet/net/ipv4/ipmr.c:1273)\n[   86.334583] ? __pfx_ipmr_hash_cmp (/build/work/knet/net/ipv4/ipmr.c:363)\n[   86.335357] ip_mroute_setsockopt (/build/work/knet/net/ipv4/ipmr.c:1470)\n[   86.336135] ? srso_return_thunk (/build/work/knet/arch/x86/lib/retpoline.S:223)\n[   86.336854] ? ip_mroute_setsockopt (/build/work/knet/net/ipv4/ipmr.c:1470)\n[   86.337679] do_ip_setsockopt (/build/work/knet/net/ipv4/ip_sockglue.c:944)\n[   86.338408] ? __pfx_unix_stream_read_actor (/build/work/knet/net/unix/af_unix.c:2862)\n[   86.339232] ? srso_return_thunk (/build/work/knet/arch/x86/lib/retpoline.S:223)\n[   86.339809] ? aa_sk_perm (/build/work/knet/security/apparmor/include/cred.h:153 /build/work/knet/security/apparmor/net.c:181)\n[   86.340342] ip_setsockopt (/build/work/knet/net/ipv4/ip_sockglue.c:1415)\n[   86.340859] raw_setsockopt (/build/work/knet/net/ipv4/raw.c:836)\n[   86.341408] ? security_socket_setsockopt (/build/work/knet/security/security.c:4561 (discriminator 13))\n[   86.342116] sock_common_setsockopt (/build/work/knet/net/core/sock.c:3716)\n[   86.342747] do_sock_setsockopt (/build/work/knet/net/socket.c:2313)\n[   86.343363] __sys_setsockopt (/build/work/knet/./include/linux/file.h:32 /build/work/kn\n---truncated---","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-476"],"references":["https://git.kernel.org/stable/c/2e8c9ae40adda2be1ba41c05fd3cd1e61cce3207","https://git.kernel.org/stable/c/d2f1b7fe74afd66298dbb3c7b39e7b62e4df1724","https://git.kernel.org/stable/c/dcaafdba6c6162bb49f1192850bc3bbc3707738c","https://git.kernel.org/stable/c/e622502c310f1069fd9f41cd38210553115f610a","https://git.kernel.org/stable/c/2e8c9ae40adda2be1ba41c05fd3cd1e61cce3207"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:46:54.846886191+00:00"},"epss":{"cve":"CVE-2024-26626","score":0.00644,"percentile":0.50908,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}