{"id":"CVE-2024-26907","summary":"RDMA/mlx5: Fix fortify source warning while accessing Eth segment","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/mlx5: Fix fortify source warning while accessing Eth segment\n\n ------------[ cut here ]------------\n memcpy: detected field-spanning write (size 56) of single field \"eseg-\u003einline_hdr.start\" at /var/lib/dkms/mlnx-ofed-kernel/5.8/build/drivers/infiniband/hw/mlx5/wr.c:131 (size 2)\n WARNING: CPU: 0 PID: 293779 at /var/lib/dkms/mlnx-ofed-kernel/5.8/build/drivers/infiniband/hw/mlx5/wr.c:131 mlx5_ib_post_send+0x191b/0x1a60 [mlx5_ib]\n Modules linked in: 8021q garp mrp stp llc rdma_ucm(OE) rdma_cm(OE) iw_cm(OE) ib_ipoib(OE) ib_cm(OE) ib_umad(OE) mlx5_ib(OE) ib_uverbs(OE) ib_core(OE) mlx5_core(OE) pci_hyperv_intf mlxdevm(OE) mlx_compat(OE) tls mlxfw(OE) psample nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables libcrc32c nfnetlink mst_pciconf(OE) knem(OE) vfio_pci vfio_pci_core vfio_iommu_type1 vfio iommufd irqbypass cuse nfsv3 nfs fscache netfs xfrm_user xfrm_algo ipmi_devintf ipmi_msghandler binfmt_misc crct10dif_pclmul crc32_pclmul polyval_clmulni polyval_generic ghash_clmulni_intel sha512_ssse3 snd_pcsp aesni_intel crypto_simd cryptd snd_pcm snd_timer joydev snd soundcore input_leds serio_raw evbug nfsd auth_rpcgss nfs_acl lockd grace sch_fq_codel sunrpc drm efi_pstore ip_tables x_tables autofs4 psmouse virtio_net net_failover failover floppy\n  [last unloaded: mlx_compat(OE)]\n CPU: 0 PID: 293779 Comm: ssh Tainted: G           OE      6.2.0-32-generic #32~22.04.1-Ubuntu\n Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011\n RIP: 0010:mlx5_ib_post_send+0x191b/0x1a60 [mlx5_ib]\n Code: 0c 01 00 a8 01 75 25 48 8b 75 a0 b9 02 00 00 00 48 c7 c2 10 5b fd c0 48 c7 c7 80 5b fd c0 c6 05 57 0c 03 00 01 e8 95 4d 93 da \u003c0f\u003e 0b 44 8b 4d b0 4c 8b 45 c8 48 8b 4d c0 e9 49 fb ff ff 41 0f b7\n RSP: 0018:ffffb5b48478b570 EFLAGS: 00010046\n RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000\n RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000\n RBP: ffffb5b48478b628 R08: 0000000000000000 R09: 0000000000000000\n R10: 0000000000000000 R11: 0000000000000000 R12: ffffb5b48478b5e8\n R13: ffff963a3c609b5e R14: ffff9639c3fbd800 R15: ffffb5b480475a80\n FS:  00007fc03b444c80(0000) GS:ffff963a3dc00000(0000) knlGS:0000000000000000\n CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 0000556f46bdf000 CR3: 0000000006ac6003 CR4: 00000000003706f0\n DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n Call Trace:\n  \u003cTASK\u003e\n  ? show_regs+0x72/0x90\n  ? mlx5_ib_post_send+0x191b/0x1a60 [mlx5_ib]\n  ? __warn+0x8d/0x160\n  ? mlx5_ib_post_send+0x191b/0x1a60 [mlx5_ib]\n  ? report_bug+0x1bb/0x1d0\n  ? handle_bug+0x46/0x90\n  ? exc_invalid_op+0x19/0x80\n  ? asm_exc_invalid_op+0x1b/0x20\n  ? mlx5_ib_post_send+0x191b/0x1a60 [mlx5_ib]\n  mlx5_ib_post_send_nodrain+0xb/0x20 [mlx5_ib]\n  ipoib_send+0x2ec/0x770 [ib_ipoib]\n  ipoib_start_xmit+0x5a0/0x770 [ib_ipoib]\n  dev_hard_start_xmit+0x8e/0x1e0\n  ? validate_xmit_skb_list+0x4d/0x80\n  sch_direct_xmit+0x116/0x3a0\n  __dev_xmit_skb+0x1fd/0x580\n  __dev_queue_xmit+0x284/0x6b0\n  ? _raw_spin_unlock_irq+0xe/0x50\n  ? __flush_work.isra.0+0x20d/0x370\n  ? push_pseudo_header+0x17/0x40 [ib_ipoib]\n  neigh_connected_output+0xcd/0x110\n  ip_finish_output2+0x179/0x480\n  ? __smp_call_single_queue+0x61/0xa0\n  __ip_finish_output+0xc3/0x190\n  ip_finish_output+0x2e/0xf0\n  ip_output+0x78/0x110\n  ? __pfx_ip_finish_output+0x10/0x10\n  ip_local_out+0x64/0x70\n  __ip_queue_xmit+0x18a/0x460\n  ip_queue_xmit+0x15/0x30\n  __tcp_transmit_skb+0x914/0x9c0\n  tcp_write_xmit+0x334/0x8d0\n  tcp_push_one+0x3c/0x60\n  tcp_sendmsg_locked+0x2e1/0xac0\n  tcp_sendmsg+0x2d/0x50\n  inet_sendmsg+0x43/0x90\n  sock_sendmsg+0x68/0x80\n  sock_write_iter+0x93/0x100\n  vfs_write+0x326/0x3c0\n  ksys_write+0xbd/0xf0\n  ? do_syscall_64+0x69/0x90\n  __x64_sys_write+0x19/0x30\n  do_syscall_\n---truncated---","modified":"2026-04-02T10:06:23.150267Z","published":"2024-04-17T10:27:54.194Z","related":["ALSA-2024:4211","ALSA-2024:4352","SUSE-SU-2024:1643-1","SUSE-SU-2024:1646-1","SUSE-SU-2024:1870-1","SUSE-SU-2024:2008-1","SUSE-SU-2024:2019-1","SUSE-SU-2024:2190-1","SUSE-SU-2025:20028-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26907.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/185fa07000e0a81d54cf8c05414cebff14469a5c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4d5e86a56615cc387d21c629f9af8fb0e958d350"},{"type":"WEB","url":"https://git.kernel.org/stable/c/60ba938a8bc8c90e724c75f98e932f9fb7ae1b9d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9a624a5f95733bac4648ecadb320ca83aa9c08fd"},{"type":"WEB","url":"https://git.kernel.org/stable/c/cad82f1671e41094acd3b9a60cd27d67a3c64a21"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d27c48dc309da72c3b46351a1205d89687272baa"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26907.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-26907"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"34f4c9554d8b2a7d2deb9503e9373b598ee3279f"},{"fixed":"d27c48dc309da72c3b46351a1205d89687272baa"},{"fixed":"60ba938a8bc8c90e724c75f98e932f9fb7ae1b9d"},{"fixed":"cad82f1671e41094acd3b9a60cd27d67a3c64a21"},{"fixed":"9a624a5f95733bac4648ecadb320ca83aa9c08fd"},{"fixed":"185fa07000e0a81d54cf8c05414cebff14469a5c"},{"fixed":"4d5e86a56615cc387d21c629f9af8fb0e958d350"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-26907.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}