Oops: general protection fault, probably for non-canonical address 0xed25c004014e6c6c: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: maybe wild-memory-access in range [0x692e20200a736360-0x692e20200a736367] CPU: 1 UID: 0 PID: 5957 Comm: syz.1.2 Not tainted 6.12.0-rc5-next-20241101-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:kfree_skb_list_reason+0x10c/0x750 net/core/skbuff.c:1281 Code: 48 c1 e8 03 48 89 44 24 28 48 c7 c0 20 4d 66 8e 48 c1 e8 03 48 89 44 24 30 4d 89 fc 49 c1 ec 03 48 b8 00 00 00 00 00 fc ff df <41> 80 3c 04 00 74 08 4c 89 ff e8 85 54 78 f8 4d 8b 2f 4d 8d b7 e4 RSP: 0018:ffffc90004546f20 EFLAGS: 00010207 RAX: dffffc0000000000 RBX: 1ffff920008a8dec RCX: 0000000000000000 RDX: ffff88802605da00 RSI: 0000000000000002 RDI: 0000000000000001 RBP: ffffc900045470c0 R08: ffffffff8987ad72 R09: 0000000000000000 R10: ffffc90004546f80 R11: fffff520008a8e01 R12: 0d25c404014e6c6c R13: ffff8880346c9040 R14: ffffc90004546f80 R15: 692e20200a736365 FS: 00007f2c160bd6c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c2c3284 CR3: 000000003317e000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: skb_release_data+0x5cc/0x8a0 net/core/skbuff.c:1123 skb_release_all net/core/skbuff.c:1190 [inline] __kfree_skb net/core/skbuff.c:1204 [inline] sk_skb_reason_drop+0x1c9/0x380 net/core/skbuff.c:1242 kfree_skb_reason include/linux/skbuff.h:1262 [inline] kfree_skb include/linux/skbuff.h:1271 [inline] __ip_flush_pending_frames net/ipv4/ip_output.c:1538 [inline] ip_flush_pending_frames+0x12d/0x260 net/ipv4/ip_output.c:1545 udp_flush_pending_frames net/ipv4/udp.c:829 [inline] udp_sendmsg+0x5d2/0x2a50 net/ipv4/udp.c:1302 sock_sendmsg_nosec net/socket.c:729 [inline] __sock_sendmsg+0x1a6/0x270 net/socket.c:744 sock_sendmsg+0x134/0x200 net/socket.c:767 splice_to_socket+0xa10/0x10b0 fs/splice.c:889 do_splice_from fs/splice.c:941 [inline] direct_splice_actor+0x11b/0x220 fs/splice.c:1164 splice_direct_to_actor+0x586/0xc80 fs/splice.c:1108 do_splice_direct_actor fs/splice.c:1207 [inline] do_splice_direct+0x289/0x3e0 fs/splice.c:1233 do_sendfile+0x561/0xe10 fs/read_write.c:1388 __do_sys_sendfile64 fs/read_write.c:1455 [inline] __se_sys_sendfile64+0x17c/0x1e0 fs/read_write.c:1441 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f2c1537e719 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f2c160bd038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f2c15536130 RCX: 00007f2c1537e719 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000006 RBP: 00007f2c153f132e R08: 0000000000000000 R09: 0000000000000000 R10: 0000020000023893 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f2c15536130 R15: 00007fffadbdd528 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:kfree_skb_list_reason+0x10c/0x750 net/core/skbuff.c:1281 Code: 48 c1 e8 03 48 89 44 24 28 48 c7 c0 20 4d 66 8e 48 c1 e8 03 48 89 44 24 30 4d 89 fc 49 c1 ec 03 48 b8 00 00 00 00 00 fc ff df <41> 80 3c 04 00 74 08 4c 89 ff e8 85 54 78 f8 4d 8b 2f 4d 8d b7 e4 RSP: 0018:ffffc90004546f20 EFLAGS: 00010207 RAX: dffffc0000000000 RBX: 1ffff920008a8dec RCX: 0000000000000000 RDX: ffff88802605da00 RSI: 0000000000000002 RDI: 0000000000000001 RBP: ffffc900045470c0 R08: ffffffff8987ad72 R09: 0000000000000000 R10: ffffc90004546f80 R11: fffff520008a8e01 R12: 0d25c404014e6c6c R13: ffff8880346c9040 R14: ffffc90004546f80 R15: 692e20200a736365 FS: 00007f2c160bd6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b3171fffc CR3: 000000003317e000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 48 c1 e8 03 shr $0x3,%rax 4: 48 89 44 24 28 mov %rax,0x28(%rsp) 9: 48 c7 c0 20 4d 66 8e mov $0xffffffff8e664d20,%rax 10: 48 c1 e8 03 shr $0x3,%rax 14: 48 89 44 24 30 mov %rax,0x30(%rsp) 19: 4d 89 fc mov %r15,%r12 1c: 49 c1 ec 03 shr $0x3,%r12 20: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 27: fc ff df * 2a: 41 80 3c 04 00 cmpb $0x0,(%r12,%rax,1) <-- trapping instruction 2f: 74 08 je 0x39 31: 4c 89 ff mov %r15,%rdi 34: e8 85 54 78 f8 call 0xf87854be 39: 4d 8b 2f mov (%r15),%r13 3c: 4d rex.WRB 3d: 8d .byte 0x8d 3e: b7 e4 mov $0xe4,%bh