------------[ cut here ]------------
WARNING: CPU: 1 PID: 13684 at net/core/skbuff.c:5295 skb_try_coalesce+0x1235/0x1560 net/core/skbuff.c:5295
Modules linked in:
CPU: 1 PID: 13684 Comm: syz-executor.4 Not tainted 5.17.0-rc8-syzkaller-00070-g6a7d8cff4a33 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:skb_try_coalesce+0x1235/0x1560 net/core/skbuff.c:5295
Code: bf 01 00 00 00 0f b7 c0 89 c6 89 44 24 20 e8 22 43 4f fa 8b 44 24 20 83 e8 01 0f 85 e5 f0 ff ff e9 87 f4 ff ff e8 8b 3f 4f fa <0f> 0b e9 06 f9 ff ff e8 0f b9 96 fa e9 69 f0 ff ff e8 f5 b8 96 fa
RSP: 0018:ffffc90000dc04a8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 00000000fffffea8 RCX: 0000000000000100
RDX: ffff8880240eba00 RSI: ffffffff872980a5 RDI: 0000000000000003
RBP: ffff888018c15dc0 R08: 00000000fffffea8 R09: 0000000000000000
R10: ffffffff872979a9 R11: 0000000000000000 R12: ffff88807bfdf3c0
R13: ffff88806ee2b2c0 R14: ffff888021b70ac0 R15: 0000000000000028
FS: 00007f2498d81700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020213000 CR3: 000000004fe11000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
tcp_try_coalesce net/ipv4/tcp_input.c:4651 [inline]
tcp_try_coalesce+0x393/0x920 net/ipv4/tcp_input.c:4630
tcp_queue_rcv+0x8a/0x6e0 net/ipv4/tcp_input.c:4914
tcp_data_queue+0x11fd/0x4bb0 net/ipv4/tcp_input.c:5025
tcp_rcv_established+0x81e/0x1ff0 net/ipv4/tcp_input.c:5947
tcp_v4_do_rcv+0x65e/0x980 net/ipv4/tcp_ipv4.c:1719
tcp_v4_rcv+0x27d7/0x3170 net/ipv4/tcp_ipv4.c:2119
ip_protocol_deliver_rcu+0xa3/0xf30 net/ipv4/ip_input.c:204
ip_local_deliver_finish+0x20a/0x370 net/ipv4/ip_input.c:231
NF_HOOK include/linux/netfilter.h:307 [inline]
NF_HOOK include/linux/netfilter.h:301 [inline]
ip_local_deliver+0x1b3/0x200 net/ipv4/ip_input.c:252
dst_input include/net/dst.h:461 [inline]
ip_rcv_finish+0x1cb/0x2f0 net/ipv4/ip_input.c:429
NF_HOOK include/linux/netfilter.h:307 [inline]
NF_HOOK include/linux/netfilter.h:301 [inline]
ip_rcv+0xaa/0xd0 net/ipv4/ip_input.c:540
deliver_skb net/core/dev.c:2135 [inline]
deliver_ptype_list_skb net/core/dev.c:2150 [inline]
__netif_receive_skb_core+0xf94/0x3850 net/core/dev.c:5307
__netif_receive_skb_one_core+0xae/0x180 net/core/dev.c:5349
__netif_receive_skb+0x24/0x1b0 net/core/dev.c:5465
process_backlog+0x2a5/0x6c0 net/core/dev.c:5797
__napi_poll+0xb3/0x6e0 net/core/dev.c:6365
napi_poll net/core/dev.c:6432 [inline]
net_rx_action+0x801/0xb40 net/core/dev.c:6519
__do_softirq+0x29b/0x9c2 kernel/softirq.c:558
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x123/0x180 kernel/softirq.c:637
irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:orc_ip arch/x86/kernel/unwind_orc.c:30 [inline]
RIP: 0010:__orc_find+0x83/0xf0 arch/x86/kernel/unwind_orc.c:52
Code: 01 d0 48 d1 f8 48 8d 5c 85 00 48 89 d8 48 c1 e8 03 42 0f b6 14 38 48 89 d8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 48 48 63 03 <48> 01 d8 48 39 c1 73 b0 4c 8d 63 fc 49 39 ec 73 b3 4d 29 ee 49 c1
RSP: 0018:ffffc90000da73f8 EFLAGS: 00000246
RAX: fffffffff4688cf4 RBX: ffffffff8dad7d80 RCX: ffffffff82160a61
RDX: 0000000000000000 RSI: ffffffff8e225cf0 RDI: ffffffff8dad7d6c
RBP: ffffffff8dad7d6c R08: ffffffff8e225cf0 R09: 0000000000000001
R10: fffff520001b4eae R11: 0000000000088078 R12: ffffffff8dad7d94
R13: ffffffff8dad7d6c R14: ffffffff8dad7d6c R15: dffffc0000000000
orc_find arch/x86/kernel/unwind_orc.c:173 [inline]
unwind_next_frame+0x32a/0x1ce0 arch/x86/kernel/unwind_orc.c:443
arch_stack_walk+0x7d/0xe0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:122
kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38
kasan_set_track mm/kasan/common.c:45 [inline]
set_alloc_info mm/kasan/common.c:436 [inline]
__kasan_slab_alloc+0x90/0xc0 mm/kasan/common.c:469
kasan_slab_alloc include/linux/kasan.h:260 [inline]
slab_post_alloc_hook mm/slab.h:732 [inline]
slab_alloc_node mm/slub.c:3230 [inline]
slab_alloc mm/slub.c:3238 [inline]
kmem_cache_alloc+0x271/0x4b0 mm/slub.c:3243
kmem_cache_zalloc include/linux/slab.h:704 [inline]
jbd2_alloc_handle include/linux/jbd2.h:1600 [inline]
new_handle fs/jbd2/transaction.c:481 [inline]
jbd2__journal_start+0x186/0x6b0 fs/jbd2/transaction.c:508
__ext4_journal_start_sb+0x3a8/0x4a0 fs/ext4/ext4_jbd2.c:105
__ext4_journal_start fs/ext4/ext4_jbd2.h:326 [inline]
ext4_dirty_inode+0x9d/0x110 fs/ext4/inode.c:5899
__mark_inode_dirty+0x45b/0xfe0 fs/fs-writeback.c:2409
mark_inode_dirty include/linux/fs.h:2367 [inline]
generic_write_end+0x31b/0x500 fs/buffer.c:2203
ext4_da_write_end+0x1c2/0x990 fs/ext4/inode.c:3042
generic_perform_write+0x2c6/0x510 mm/filemap.c:3776
ext4_buffered_write_iter+0x1a2/0x390 fs/ext4/file.c:268
ext4_file_write_iter+0x423/0x14d0 fs/ext4/file.c:677
call_write_iter include/linux/fs.h:2074 [inline]
new_sync_write+0x431/0x660 fs/read_write.c:503
vfs_write+0x7cd/0xae0 fs/read_write.c:590
ksys_write+0x12d/0x250 fs/read_write.c:643
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f249a40c049
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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f2498d81168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f249a51ef60 RCX: 00007f249a40c049
RDX: 000000000208e24b RSI: 00000000200000c0 RDI: 0000000000000003
RBP: 00007f249a46608d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdd5dad01f R14: 00007f2498d81300 R15: 0000000000022000
----------------
Code disassembly (best guess):
0: 01 d0 add %edx,%eax
2: 48 d1 f8 sar %rax
5: 48 8d 5c 85 00 lea 0x0(%rbp,%rax,4),%rbx
a: 48 89 d8 mov %rbx,%rax
d: 48 c1 e8 03 shr $0x3,%rax
11: 42 0f b6 14 38 movzbl (%rax,%r15,1),%edx
16: 48 89 d8 mov %rbx,%rax
19: 83 e0 07 and $0x7,%eax
1c: 83 c0 03 add $0x3,%eax
1f: 38 d0 cmp %dl,%al
21: 7c 04 jl 0x27
23: 84 d2 test %dl,%dl
25: 75 48 jne 0x6f
27: 48 63 03 movslq (%rbx),%rax
* 2a: 48 01 d8 add %rbx,%rax <-- trapping instruction
2d: 48 39 c1 cmp %rax,%rcx
30: 73 b0 jae 0xffffffe2
32: 4c 8d 63 fc lea -0x4(%rbx),%r12
36: 49 39 ec cmp %rbp,%r12
39: 73 b3 jae 0xffffffee
3b: 4d 29 ee sub %r13,%r14
3e: 49 rex.WB
3f: c1 .byte 0xc1