ghsa-gp2g-j8q2-w9v8
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
net: fix net_dev_start_xmit trace event vs skb_transport_offset()
After blamed commit, we must be more careful about using skb_transport_offset(), as reminded us by syzbot:
WARNING: CPU: 0 PID: 10 at include/linux/skbuff.h:2868 skb_transport_offset include/linux/skbuff.h:2977 [inline] WARNING: CPU: 0 PID: 10 at include/linux/skbuff.h:2868 perf_trace_net_dev_start_xmit+0x89a/0xce0 include/trace/events/net.h:14 Modules linked in: CPU: 0 PID: 10 Comm: kworker/u4:1 Not tainted 6.1.30-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet RIP: 0010:skb_transport_header include/linux/skbuff.h:2868 [inline] RIP: 0010:skb_transport_offset include/linux/skbuff.h:2977 [inline] RIP: 0010:perf_trace_net_dev_start_xmit+0x89a/0xce0 include/trace/events/net.h:14 Code: 8b 04 25 28 00 00 00 48 3b 84 24 c0 00 00 00 0f 85 4e 04 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc e8 56 22 01 fd <0f> 0b e9 f6 fc ff ff 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 86 f9 ff RSP: 0018:ffffc900002bf700 EFLAGS: 00010293 RAX: ffffffff8485d8ca RBX: 000000000000ffff RCX: ffff888100914280 RDX: 0000000000000000 RSI: 000000000000ffff RDI: 000000000000ffff RBP: ffffc900002bf818 R08: ffffffff8485d5b6 R09: fffffbfff0f8fb5e R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff110217d8f67 R13: ffff88810bec7b3a R14: dffffc0000000000 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8881f6a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f96cf6d52f0 CR3: 000000012224c000 CR4: 0000000000350ef0 Call Trace: [] trace_net_dev_start_xmit include/trace/events/net.h:14 [inline] [] xmit_one net/core/dev.c:3643 [inline] [] dev_hard_start_xmit+0x705/0x980 net/core/dev.c:3660 [] __dev_queue_xmit+0x16b2/0x3370 net/core/dev.c:4324 [] dev_queue_xmit include/linux/netdevice.h:3030 [inline] [] batadv_send_skb_packet+0x3f3/0x680 net/batman-adv/send.c:108 [] batadv_send_broadcast_skb+0x24/0x30 net/batman-adv/send.c:127 [] batadv_iv_ogm_send_to_if net/batman-adv/bat_iv_ogm.c:393 [inline] [] batadv_iv_ogm_emit net/batman-adv/bat_iv_ogm.c:421 [inline] [] batadv_iv_send_outstanding_bat_ogm_packet+0x69a/0x840 net/batman-adv/bat_iv_ogm.c:1701 [] process_one_work+0x8ac/0x1170 kernel/workqueue.c:2289 [] worker_thread+0xaa8/0x12d0 kernel/workqueue.c:2436
{ "affected": [], "aliases": [ "CVE-2023-53312" ], "database_specific": { "cwe_ids": [], "github_reviewed": false, "github_reviewed_at": null, "nvd_published_at": "2025-09-16T17:15:37Z", "severity": null }, "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: fix net_dev_start_xmit trace event vs skb_transport_offset()\n\nAfter blamed commit, we must be more careful about using\nskb_transport_offset(), as reminded us by syzbot:\n\nWARNING: CPU: 0 PID: 10 at include/linux/skbuff.h:2868 skb_transport_offset include/linux/skbuff.h:2977 [inline]\nWARNING: CPU: 0 PID: 10 at include/linux/skbuff.h:2868 perf_trace_net_dev_start_xmit+0x89a/0xce0 include/trace/events/net.h:14\nModules linked in:\nCPU: 0 PID: 10 Comm: kworker/u4:1 Not tainted 6.1.30-syzkaller #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023\nWorkqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet\nRIP: 0010:skb_transport_header include/linux/skbuff.h:2868 [inline]\nRIP: 0010:skb_transport_offset include/linux/skbuff.h:2977 [inline]\nRIP: 0010:perf_trace_net_dev_start_xmit+0x89a/0xce0 include/trace/events/net.h:14\nCode: 8b 04 25 28 00 00 00 48 3b 84 24 c0 00 00 00 0f 85 4e 04 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc e8 56 22 01 fd \u003c0f\u003e 0b e9 f6 fc ff ff 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 86 f9 ff\nRSP: 0018:ffffc900002bf700 EFLAGS: 00010293\nRAX: ffffffff8485d8ca RBX: 000000000000ffff RCX: ffff888100914280\nRDX: 0000000000000000 RSI: 000000000000ffff RDI: 000000000000ffff\nRBP: ffffc900002bf818 R08: ffffffff8485d5b6 R09: fffffbfff0f8fb5e\nR10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff110217d8f67\nR13: ffff88810bec7b3a R14: dffffc0000000000 R15: dffffc0000000000\nFS: 0000000000000000(0000) GS:ffff8881f6a00000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007f96cf6d52f0 CR3: 000000012224c000 CR4: 0000000000350ef0\nCall Trace:\n\u003cTASK\u003e\n[\u003cffffffff84715e35\u003e] trace_net_dev_start_xmit include/trace/events/net.h:14 [inline]\n[\u003cffffffff84715e35\u003e] xmit_one net/core/dev.c:3643 [inline]\n[\u003cffffffff84715e35\u003e] dev_hard_start_xmit+0x705/0x980 net/core/dev.c:3660\n[\u003cffffffff8471a232\u003e] __dev_queue_xmit+0x16b2/0x3370 net/core/dev.c:4324\n[\u003cffffffff85416493\u003e] dev_queue_xmit include/linux/netdevice.h:3030 [inline]\n[\u003cffffffff85416493\u003e] batadv_send_skb_packet+0x3f3/0x680 net/batman-adv/send.c:108\n[\u003cffffffff85416744\u003e] batadv_send_broadcast_skb+0x24/0x30 net/batman-adv/send.c:127\n[\u003cffffffff853bc52a\u003e] batadv_iv_ogm_send_to_if net/batman-adv/bat_iv_ogm.c:393 [inline]\n[\u003cffffffff853bc52a\u003e] batadv_iv_ogm_emit net/batman-adv/bat_iv_ogm.c:421 [inline]\n[\u003cffffffff853bc52a\u003e] batadv_iv_send_outstanding_bat_ogm_packet+0x69a/0x840 net/batman-adv/bat_iv_ogm.c:1701\n[\u003cffffffff8151023c\u003e] process_one_work+0x8ac/0x1170 kernel/workqueue.c:2289\n[\u003cffffffff81511938\u003e] worker_thread+0xaa8/0x12d0 kernel/workqueue.c:2436", "id": "GHSA-gp2g-j8q2-w9v8", "modified": "2025-09-16T18:31:26Z", "published": "2025-09-16T18:31:26Z", "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53312" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/58f9e88eb247263c74383b4ee8858abac15cdbe0" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/ced61418f46993d571385812bafed3a7d4ab6918" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/f88fcb1d7d961b4b402d675109726f94db87571c" } ], "schema_version": "1.4.0", "severity": [] }
Sightings
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