ci starts bisection 2023-03-03 15:05:47.811072429 +0000 UTC m=+190274.182325282 bisecting fixing commit since fe69230f05897b3de758427b574fc98025dfc907 building syzkaller on 1dac8c7a01e2bdd35cb04eb4901ddb157291ac2d ensuring issue is reproducible on original commit fe69230f05897b3de758427b574fc98025dfc907 testing commit fe69230f05897b3de758427b574fc98025dfc907 gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: f13f5d1334c3b98ec03964151c540ac678f3b0177b8f2dfe9877a77db3fa8b8d all runs: crashed: WARNING in bpf_xdp_adjust_tail testing current HEAD 528125268588a18a2f257002af051b62b14bb282 testing commit 528125268588a18a2f257002af051b62b14bb282 gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 4a5ce1f0c51e743f465bde1a82699ddde689bfe83dd175cf1750cffe6d7f189d all runs: crashed: WARNING in bpf_xdp_adjust_tail revisions tested: 2, total time: 25m38.56615832s (build: 18m4.544199095s, test: 6m31.258268261s) the crash still happens on HEAD commit msg: Merge branch 'nfp-ipsec-csum' crash: WARNING in bpf_xdp_adjust_tail ------------[ cut here ]------------ Too BIG xdp->frame_sz = 131072 WARNING: CPU: 1 PID: 5590 at net/core/filter.c:4094 ____bpf_xdp_adjust_tail net/core/filter.c:4094 [inline] WARNING: CPU: 1 PID: 5590 at net/core/filter.c:4094 bpf_xdp_adjust_tail+0x3db/0x870 net/core/filter.c:4076 Modules linked in: CPU: 1 PID: 5590 Comm: syz-executor.0 Not tainted 6.2.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 RIP: 0010:____bpf_xdp_adjust_tail net/core/filter.c:4094 [inline] RIP: 0010:bpf_xdp_adjust_tail+0x3db/0x870 net/core/filter.c:4076 Code: 80 3d d7 e5 de 05 00 49 c7 c5 ea ff ff ff 0f 85 85 fd ff ff 44 89 e6 48 c7 c7 80 af 6d 8a c6 05 b9 e5 de 05 01 e8 25 11 d4 f9 <0f> 0b e9 68 fd ff ff 4c 89 44 24 08 4c 89 0c 24 e8 50 9c 4b fa 4c RSP: 0018:ffffc90004a9f920 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000202 RSI: 0000000000000008 RDI: 0000000000000001 RBP: ffff888071d8feef R08: 0000000000000000 R09: ffffc90004a9f64f R10: fffff52000953ec9 R11: 0000000000000000 R12: 0000000000020000 R13: ffffffffffffffea R14: ffff888071d8feef R15: 0000000000000000 FS: 00007f9c3eb2b700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020011000 CR3: 000000007a732000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bpf_prog_4add87e5301a4105+0x1a/0x1c __bpf_prog_run include/linux/filter.h:601 [inline] bpf_prog_run_xdp include/linux/filter.h:776 [inline] bpf_prog_run_generic_xdp+0x527/0x1210 net/core/dev.c:4749 netif_receive_generic_xdp+0x23f/0x7c0 net/core/dev.c:4835 do_xdp_generic net/core/dev.c:4894 [inline] do_xdp_generic+0x8a/0x150 net/core/dev.c:4887 tun_get_user+0x1a1d/0x30a0 drivers/net/tun.c:1918 tun_chr_write_iter+0xbb/0x1b0 drivers/net/tun.c:2034 call_write_iter include/linux/fs.h:1851 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x823/0xd80 fs/read_write.c:584 ksys_write+0xf2/0x1c0 fs/read_write.c:637 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f9c3de3de4f Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 fd ff ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 cc fd ff ff 48 RSP: 002b:00007f9c3eb2b130 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f9c3dfabf80 RCX: 00007f9c3de3de4f RDX: 000000000000fdef RSI: 0000000020001600 RDI: 00000000000000c8 RBP: 00007f9c3dee7ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000 R13: 00007ffeef015edf R14: 00007f9c3eb2b300 R15: 0000000000022000