ci starts bisection 2023-03-03 18:27:22.947817005 +0000 UTC m=+202369.319069862
bisecting fixing commit since 77b1b8b43ec3c060ecf7e926a92b0f8772171046
building syzkaller on e13a05ed99be3112220ed09062bd52e1c0a2ffb6
ensuring issue is reproducible on original commit 77b1b8b43ec3c060ecf7e926a92b0f8772171046
testing commit 77b1b8b43ec3c060ecf7e926a92b0f8772171046 gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 025732f1d82564eaee3ac60cf9db7f33cd70fbff17fd32625b4f702cc207dfd5
run #0: crashed: WARNING in ieee80211_rx_list
run #1: crashed: WARNING in ieee80211_rx_list
run #2: crashed: WARNING in ieee80211_rx_list
run #3: crashed: WARNING in ieee80211_rx_list
run #4: crashed: WARNING in ieee80211_rx_list
run #5: crashed: WARNING in ieee80211_rx_list
run #6: crashed: WARNING in ieee80211_rx_list
run #7: crashed: WARNING in ieee80211_rx_list
run #8: crashed: WARNING in ieee80211_rx_list
run #9: crashed: WARNING in ieee80211_rx_list
run #10: crashed: WARNING in ieee80211_rx_list
run #11: crashed: WARNING in ieee80211_rx_list
run #12: crashed: WARNING in ieee80211_rx_list
run #13: crashed: WARNING in ieee80211_rx_list
run #14: crashed: WARNING in ieee80211_rx_list
run #15: crashed: WARNING in ieee80211_rx_list
run #16: crashed: WARNING in ieee80211_rx_list
run #17: crashed: WARNING in ieee80211_rx_list
run #18: OK
run #19: OK
testing current HEAD d900f3d20cc3169ce42ec72acc850e662a4d4db2
testing commit d900f3d20cc3169ce42ec72acc850e662a4d4db2 gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 0bb89df407e1eb93f626174a6c8468b4bb172ef9fc30345c71342e0f09003569
run #0: crashed: WARNING in ieee80211_rx_list
run #1: crashed: WARNING in ieee80211_rx_list
run #2: crashed: WARNING in ieee80211_rx_list
run #3: crashed: WARNING in ieee80211_rx_list
run #4: crashed: WARNING in ieee80211_rx_list
run #5: crashed: WARNING in ieee80211_rx_list
run #6: crashed: WARNING in ieee80211_rx_list
run #7: OK
run #8: OK
run #9: OK
revisions tested: 2, total time: 39m0.510902697s (build: 15m9.411881511s, test: 22m44.211182454s)
the crash still happens on HEAD
commit msg: bpf, sockmap: Fix an infinite loop error when len is 0 in tcp_bpf_recvmsg_parser()
crash: WARNING in ieee80211_rx_list
------------[ cut here ]------------
WARNING: CPU: 1 PID: 30608 at net/mac80211/rx.c:5191 ieee80211_rx_list+0xf7e/0x2990 net/mac80211/rx.c:5270
Modules linked in:
CPU: 1 PID: 30608 Comm: dhcpcd-run-hook Not tainted 6.2.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023
RIP: 0010:ieee80211_rx_list+0xf7e/0x2990 net/mac80211/rx.c:5191
Code: 24 28 41 8b b1 84 06 00 00 85 f6 74 10 41 81 e7 00 00 04 00 45 89 f2 0f 84 64 02 00 00 4c 89 e7 e8 67 c9 9e fe e9 36 f4 ff ff <0f> 0b e9 22 f4 ff ff 84 d2 74 1f 80 fa 03 7f 1a 4c 89 f7 4c 89 4c
RSP: 0018:ffffc900001e0c88 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff88807335b3c8 RCX: ffffc900001e0e68
RDX: 0000000000000005 RSI: 0000000000000000 RDI: ffff88807335953d
RBP: ffff88801f6e9e90 R08: 0000000000000000 R09: ffff888073358de0
R10: 0000000000000000 R11: 0000000000000001 R12: ffff88801f6e9dc0
R13: 0000000000000000 R14: 0000000000000000 R15: 1ffff9200003c1c9
FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2e8e83d9ee CR3: 000000006e357000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
ieee80211_rx_napi+0xbf/0x350 net/mac80211/rx.c:5301
ieee80211_rx include/net/mac80211.h:4899 [inline]
ieee80211_tasklet_handler+0xed/0x100 net/mac80211/main.c:315
tasklet_action_common.constprop.0+0x201/0x2e0 kernel/softirq.c:797
__do_softirq+0x2e3/0xae3 kernel/softirq.c:571
invoke_softirq kernel/softirq.c:445 [inline]
__irq_exit_rcu+0x114/0x190 kernel/softirq.c:650
irq_exit_rcu+0x9/0x20 kernel/softirq.c:662
sysvec_apic_timer_interrupt+0x97/0xc0 arch/x86/kernel/apic/apic.c:1107
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:stack_trace_consume_entry+0x26/0x160 kernel/stacktrace.c:86
Code: 00 00 00 00 f3 0f 1e fa 48 b8 00 00 00 00 00 fc ff df 55 53 48 89 fb 48 83 c7 10 48 89 fa 48 83 ec 08 48 c1 ea 03 0f b6 04 02 <84> c0 74 08 3c 03 0f 8e df 00 00 00 48 8d 7b 08 8b 6b 10 48 b8 00
RSP: 0018:ffffc9000c4e7380 EFLAGS: 00000a06
RAX: 0000000000000000 RBX: ffffc9000c4e7458 RCX: 0000000000000000
RDX: 1ffff9200189ce8d RSI: ffffffff81abc878 RDI: ffffc9000c4e7468
RBP: ffffc9000c4e7428 R08: ffffffff8d7ddaaa R09: ffffc9000c4e73d4
R10: 0000000000000001 R11: ffffc9000c4e7948 R12: ffffc9000c4e7458
R13: 0000000000000000 R14: ffff88807ca81d00 R15: ffffea00006fde00
arch_stack_walk+0x71/0xf0 arch/x86/kernel/stacktrace.c:27
stack_trace_save+0x90/0xc0 kernel/stacktrace.c:122
kasan_save_stack+0x22/0x40 mm/kasan/common.c:45
kasan_set_track+0x25/0x30 mm/kasan/common.c:52
kasan_save_free_info+0x2e/0x40 mm/kasan/generic.c:523
____kasan_slab_free mm/kasan/common.c:236 [inline]
____kasan_slab_free+0x160/0x1c0 mm/kasan/common.c:200
kasan_slab_free include/linux/kasan.h:177 [inline]
slab_free_hook mm/slub.c:1781 [inline]
slab_free_freelist_hook+0x8b/0x1c0 mm/slub.c:1807
slab_free mm/slub.c:3787 [inline]
kmem_cache_free+0xec/0x4e0 mm/slub.c:3809
anon_vma_chain_free mm/rmap.c:146 [inline]
unlink_anon_vmas+0x14d/0x7b0 mm/rmap.c:420
free_pgtables+0x1f5/0x3b0 mm/memory.c:383
exit_mmap+0x1b8/0x620 mm/mmap.c:3098
__mmput+0xf3/0x440 kernel/fork.c:1212
exec_mmap fs/exec.c:1034 [inline]
begin_new_exec+0xd4d/0x28d0 fs/exec.c:1293
load_elf_binary+0x677/0x4430 fs/binfmt_elf.c:1001
search_binary_handler fs/exec.c:1736 [inline]
exec_binprm fs/exec.c:1778 [inline]
bprm_execve fs/exec.c:1853 [inline]
bprm_execve+0x677/0x1600 fs/exec.c:1809
do_execveat_common+0x602/0x800 fs/exec.c:1960
do_execve fs/exec.c:2034 [inline]
__do_sys_execve fs/exec.c:2110 [inline]
__se_sys_execve fs/exec.c:2105 [inline]
__x64_sys_execve+0x8e/0xc0 fs/exec.c:2105
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0x80 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f2e8e78a337
Code: Unable to access opcode bytes at 0x7f2e8e78a30d.
RSP: 002b:00007ffe9ee0e9f8 EFLAGS: 00000246 ORIG_RAX: 000000000000003b
RAX: ffffffffffffffda RBX: 000056387206cf80 RCX: 00007f2e8e78a337
RDX: 000056387206cfa8 RSI: 000056387206cf80 RDI: 000056387206d060
RBP: 000056387206d060 R08: 000056387206d065 R09: 00007f2e8e97c000
R10: 00007f2e8e620800 R11: 0000000000000246 R12: 000056387206cfa8
R13: 00007f2e8e92fff4 R14: 000056387206cfa8 R15: 0000000000000000
----------------
Code disassembly (best guess):
0: 00 00 add %al,(%rax)
2: 00 00 add %al,(%rax)
4: f3 0f 1e fa endbr64
8: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
f: fc ff df
12: 55 push %rbp
13: 53 push %rbx
14: 48 89 fb mov %rdi,%rbx
17: 48 83 c7 10 add $0x10,%rdi
1b: 48 89 fa mov %rdi,%rdx
1e: 48 83 ec 08 sub $0x8,%rsp
22: 48 c1 ea 03 shr $0x3,%rdx
26: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax
* 2a: 84 c0 test %al,%al <-- trapping instruction
2c: 74 08 je 0x36
2e: 3c 03 cmp $0x3,%al
30: 0f 8e df 00 00 00 jle 0x115
36: 48 8d 7b 08 lea 0x8(%rbx),%rdi
3a: 8b 6b 10 mov 0x10(%rbx),%ebp
3d: 48 rex.W
3e: b8 .byte 0xb8