{ "data_version": "4.0", "data_type": "CVE", "data_format": "MITRE", "CVE_data_meta": { "ID": "CVE-2024-26862", "ASSIGNER": "cve@kernel.org", "STATE": "PUBLIC" }, "description": { "description_data": [ { "lang": "eng", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npacket: annotate data-races around ignore_outgoing\n\nignore_outgoing is read locklessly from dev_queue_xmit_nit()\nand packet_getsockopt()\n\nAdd appropriate READ_ONCE()/WRITE_ONCE() annotations.\n\nsyzbot reported:\n\nBUG: KCSAN: data-race in dev_queue_xmit_nit / packet_setsockopt\n\nwrite to 0xffff888107804542 of 1 bytes by task 22618 on cpu 0:\n packet_setsockopt+0xd83/0xfd0 net/packet/af_packet.c:4003\n do_sock_setsockopt net/socket.c:2311 [inline]\n __sys_setsockopt+0x1d8/0x250 net/socket.c:2334\n __do_sys_setsockopt net/socket.c:2343 [inline]\n __se_sys_setsockopt net/socket.c:2340 [inline]\n __x64_sys_setsockopt+0x66/0x80 net/socket.c:2340\n do_syscall_64+0xd3/0x1d0\n entry_SYSCALL_64_after_hwframe+0x6d/0x75\n\nread to 0xffff888107804542 of 1 bytes by task 27 on cpu 1:\n dev_queue_xmit_nit+0x82/0x620 net/core/dev.c:2248\n xmit_one net/core/dev.c:3527 [inline]\n dev_hard_start_xmit+0xcc/0x3f0 net/core/dev.c:3547\n __dev_queue_xmit+0xf24/0x1dd0 net/core/dev.c:4335\n dev_queue_xmit include/linux/netdevice.h:3091 [inline]\n batadv_send_skb_packet+0x264/0x300 net/batman-adv/send.c:108\n batadv_send_broadcast_skb+0x24/0x30 net/batman-adv/send.c:127\n batadv_iv_ogm_send_to_if net/batman-adv/bat_iv_ogm.c:392 [inline]\n batadv_iv_ogm_emit net/batman-adv/bat_iv_ogm.c:420 [inline]\n batadv_iv_send_outstanding_bat_ogm_packet+0x3f0/0x4b0 net/batman-adv/bat_iv_ogm.c:1700\n process_one_work kernel/workqueue.c:3254 [inline]\n process_scheduled_works+0x465/0x990 kernel/workqueue.c:3335\n worker_thread+0x526/0x730 kernel/workqueue.c:3416\n kthread+0x1d1/0x210 kernel/kthread.c:388\n ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147\n ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243\n\nvalue changed: 0x00 -> 0x01\n\nReported by Kernel Concurrency Sanitizer on:\nCPU: 1 PID: 27 Comm: kworker/u8:1 Tainted: G W 6.8.0-syzkaller-08073-g480e035fc4c7 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024\nWorkqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet" } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "affects": { "vendor": { "vendor_data": [ { "vendor_name": "Linux", "product": { "product_data": [ { "product_name": "Linux", "version": { "version_data": [ { "version_affected": "<", "version_name": "fa788d986a3a", "version_value": "84c510411e32" }, { "version_value": "not down converted", "x_cve_json_5_version_data": { "versions": [ { "version": "4.20", "status": "affected" }, { "version": "0", "lessThan": "4.20", "status": "unaffected", "versionType": "custom" }, { "version": "5.4.273", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.10.214", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.15.153", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.1.83", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.6.23", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.7.11", "lessThanOrEqual": "6.7.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.8.2", "lessThanOrEqual": "6.8.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.9", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ], "defaultStatus": "affected" } } ] } } ] } } ] } }, "references": { "reference_data": [ { "url": "https://git.kernel.org/stable/c/84c510411e321caff3c07e6cd0f917f06633cfc0", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/84c510411e321caff3c07e6cd0f917f06633cfc0" }, { "url": "https://git.kernel.org/stable/c/68e84120319d4fc298fcdb14cf0bea6a0f64ffbd", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/68e84120319d4fc298fcdb14cf0bea6a0f64ffbd" }, { "url": "https://git.kernel.org/stable/c/d35b62c224e70797f8a1c37fe9bc4b3e294b7560", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/d35b62c224e70797f8a1c37fe9bc4b3e294b7560" }, { "url": "https://git.kernel.org/stable/c/ef7eed7e11d23337310ecc2c014ecaeea52719c5", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/ef7eed7e11d23337310ecc2c014ecaeea52719c5" }, { "url": "https://git.kernel.org/stable/c/2c02c5059c78a52d170bdee4a369b470de6deb37", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/2c02c5059c78a52d170bdee4a369b470de6deb37" }, { "url": "https://git.kernel.org/stable/c/ee413f30ec4fe94a0bdf32c8f042cb06fa913234", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/ee413f30ec4fe94a0bdf32c8f042cb06fa913234" }, { "url": "https://git.kernel.org/stable/c/8b1e273c6afcf00d3c40a54ada7d6aac1b503b97", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/8b1e273c6afcf00d3c40a54ada7d6aac1b503b97" }, { "url": "https://git.kernel.org/stable/c/6ebfad33161afacb3e1e59ed1c2feefef70f9f97", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/6ebfad33161afacb3e1e59ed1c2feefef70f9f97" }, { "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html", "refsource": "MISC", "name": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html" } ] }, "generator": { "engine": "bippy-a5840b7849dd" } }