Hello,
syzbot found the following crash on:
HEAD commit: 83ae225d Revert "fib_rules: return 0 directly if an exactl..
git tree: android-4.9
console output:
https://syzkaller.appspot.com/x/log.txt?x=159f6c01a00000
kernel config:
https://syzkaller.appspot.com/x/.config?x=a476d873abc10edf
dashboard link:
https://syzkaller.appspot.com/bug?extid=84862f1538516952cf65
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
Unfortunately, I don't have any reproducer for this crash yet.
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by:
syzbot+84862f...@syzkaller.appspotmail.com
lowmemorykiller: Killing 'syz-executor.3' (8626) (tgid 8626), adj 1000,
to free 53556kB on behalf of 'syz-executor.4' (14688) because
cache 64548kB is below limit 65536kB for oom_score_adj 12
Free memory is -12832kB above reserved
BUG: sleeping function called from invalid context at kernel/fork.c:903
in_atomic(): 0, irqs_disabled(): 0, pid: 14688, name: syz-executor.4
2 locks held by syz-executor.4/14688:
#0: (shrinker_rwsem){++++..}, at: [<0000000022b3da72>]
shrink_slab.part.0+0xb2/0xa20 mm/vmscan.c:472
#1: (rcu_read_lock){......}, at: [<0000000091c119e8>]
lowmem_scan+0x242/0xb50 drivers/staging/android/lowmemorykiller.c:272
Call Trace:
[<00000000d83b5877>] __dump_stack lib/dump_stack.c:15 [inline]
[<00000000d83b5877>] dump_stack+0xc1/0x120 lib/dump_stack.c:51
[<0000000076ecaa52>] __vmalloc_node mm/vmalloc.c:1749 [inline]
[<0000000076ecaa52>] __vmalloc_node_flags mm/vmalloc.c:1763 [inline]
[<0000000076ecaa52>] vmalloc+0x5c/0x70 mm/vmalloc.c:1778
[<000000008ed74d48>] do_replace net/ipv6/netfilter/ip6_tables.c:1175
[inline]
[<000000008ed74d48>] do_ip6t_set_ctl+0x231/0x480
net/ipv6/netfilter/ip6_tables.c:1712
---
This bug is generated by a bot. It may contain errors.
See
https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at
syzk...@googlegroups.com.
syzbot will keep track of this bug report. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.