KASAN: slab-out-of-bounds Write in __ext4_expand_extra_isize
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syzbot
Nov 25, 2019, 1:12:09 AM11/25/19
to syzkaller...@googlegroups.com
Hello,
syzbot found the following crash on:
HEAD commit: 43598c57 Linux 4.14.156
git tree: linux-4.14.y
console output: https://syzkaller.appspot.com/x/log.txt?x=137ff586e00000
kernel config: https://syzkaller.appspot.com/x/.config?x=1a4783d222b56f4
dashboard link: https://syzkaller.appspot.com/bug?extid=0ad871b1af1ceef68c0a
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+0ad871...@syzkaller.appspotmail.com
EXT4-fs (sda1): Unrecognized mount
option "smackfsroot=debug_want_extra_isize" or missing value
==================================================================
BUG: KASAN: slab-out-of-bounds in memset include/linux/string.h:332 [inline]
BUG: KASAN: slab-out-of-bounds in __ext4_expand_extra_isize+0x14f/0x220
fs/ext4/inode.c:5763
Write of size 634401054 at addr ffff8880825aa1a0 by task rs:main Q:Reg/6826
CPU: 0 PID: 6826 Comm: rs:main Q:Reg Not tainted 4.14.156-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x142/0x197 lib/dump_stack.c:58
print_address_description.cold+0x7c/0x1dc mm/kasan/report.c:252
kasan_report_error mm/kasan/report.c:351 [inline]
kasan_report mm/kasan/report.c:409 [inline]
kasan_report.cold+0xa9/0x2af mm/kasan/report.c:393
check_memory_region_inline mm/kasan/kasan.c:260 [inline]
check_memory_region+0x123/0x190 mm/kasan/kasan.c:267
memset+0x24/0x40 mm/kasan/kasan.c:285
memset include/linux/string.h:332 [inline]
__ext4_expand_extra_isize+0x14f/0x220 fs/ext4/inode.c:5763
ext4_try_to_expand_extra_isize fs/ext4/inode.c:5815 [inline]
ext4_mark_inode_dirty+0x664/0x860 fs/ext4/inode.c:5891
ext4_dirty_inode+0x73/0xa0 fs/ext4/inode.c:5925
__mark_inode_dirty+0x54c/0x1040 fs/fs-writeback.c:2144
mark_inode_dirty include/linux/fs.h:2019 [inline]
generic_write_end+0x1b7/0x290 fs/buffer.c:2218
ext4_da_write_end+0x344/0x8e0 fs/ext4/inode.c:3187
generic_perform_write+0x29f/0x480 mm/filemap.c:3058
------------[ cut here ]------------
WARNING: CPU: 1 PID: 7002 at mm/vmacache.c:64 vmacache_find+0x1db/0x270
mm/vmacache.c:64
Kernel panic - not syncing: panic_on_warn set ...
__generic_file_write_iter+0x239/0x5b0 mm/filemap.c:3172
ext4_file_write_iter+0x2ac/0xe90 fs/ext4/file.c:268
call_write_iter include/linux/fs.h:1777 [inline]
new_sync_write fs/read_write.c:469 [inline]
__vfs_write+0x4a7/0x6b0 fs/read_write.c:482
vfs_write+0x198/0x500 fs/read_write.c:544
SYSC_write fs/read_write.c:590 [inline]
SyS_write+0xfd/0x230 fs/read_write.c:582
do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x7f760cd4c19d
RSP: 002b:00007f760b2ed000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 000000000000004b RCX: 00007f760cd4c19d
RDX: 000000000000004b RSI: 0000000001161a90 RDI: 0000000000000005
RBP: 0000000001161a90 R08: 6d203a5d33373137 R09: 6874617068637461
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 00007f760b2ed480 R14: 0000000000000001 R15: 0000000001161890
CPU: 1 PID: 7002 Comm: syz-executor.4 Not tainted 4.14.156-syzkaller #0
The buggy address belongs to the page:
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
page:ffffea0002096a80 count:2 mapcount:0 mapping:ffff8880a45d5560
index:0x427
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x142/0x197 lib/dump_stack.c:58
flags: 0x1fffc0000001074(referenced|dirty|lru|active|private)
raw: 01fffc0000001074 ffff8880a45d5560 0000000000000427 00000002ffffffff
panic+0x1f9/0x42d kernel/panic.c:183
raw: ffffea000207c920 ffffea0002040aa0 ffff88807f2b7150 ffff88821b7321c0
page dumped because: kasan: bad access detected
page->mem_cgroup:ffff88821b7321c0
Memory state around the buggy address:
__warn.cold+0x2f/0x2f kernel/panic.c:547
ffff888082801f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffff888082801f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> ffff888082802000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
report_bug+0x216/0x254 lib/bug.c:186
^
ffff888082802080: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb
fixup_bug arch/x86/kernel/traps.c:177 [inline]
fixup_bug arch/x86/kernel/traps.c:172 [inline]
do_error_trap+0x1bb/0x310 arch/x86/kernel/traps.c:295
ffff888082802100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:314
Modules linked in:
invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:963
RIP: 0010:vmacache_find+0x1db/0x270 mm/vmacache.c:64
CPU: 0 PID: 6826 Comm: rs:main Q:Reg Tainted: G B
4.14.156-syzkaller #0
RSP: 0000:ffff8880587afdf8 EFLAGS: 00010297
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
task: ffff8880a8e92000 task.stack: ffff888087df0000
RAX: ffff8880587a0600 RBX: 0000000000000000 RCX: ffff8880587a0e80
RIP: 0010:ip6t_do_table+0x289/0x1860 net/ipv6/netfilter/ip6_tables.c:293
RSP: 0018:ffff8880aee07828 EFLAGS: 00010246
RDX: 0000000000000000 RSI: 0000001b31020000 RDI: ffff888082884ef0
RBP: ffff8880587afe28 R08: 0000000000000001 R09: ffff8880587a0ea0
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff1101097f647
RDX: 0000000000000000 RSI: ffff888084bfb200 RDI: ffff888084bfb238
R10: ffff8880587a0e80 R11: ffff8880587a0600 R12: dffffc0000000000
RBP: ffff8880aee079e0 R08: 0000000000000001 R09: 0000000000000000
R13: ffff8880965f0cc0 R14: ffff888082884eb0 R15: ffff8880587a0600
R10: 0000000000000001 R11: ffff8880a8e92000 R12: ffff8880aee07ab8
R13: ffff88809a5c3a40 R14: ffff8880aee07ab8 R15: ffff8880aee07ab8
find_vma+0x21/0x150 mm/mmap.c:2155
FS: 00007f760b2ee700(0000) GS:ffff8880aee00000(0000) knlGS:0000000000000000
__do_page_fault+0x2fd/0xb80 arch/x86/mm/fault.c:1366
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000104d678 CR3: 0000000099c2b000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
do_page_fault+0x71/0x511 arch/x86/mm/fault.c:1495
page_fault+0x45/0x50 arch/x86/entry/entry_64.S:1122
RIP: 0033:0x40e26e
RSP: 002b:00007ffc26c17540 EFLAGS: 00010202
ip6table_security_hook+0x65/0x80 net/ipv6/netfilter/ip6table_security.c:45
nf_hook_entry_hookfn include/linux/netfilter.h:108 [inline]
nf_hook_slow+0xaf/0x1b0 net/netfilter/core.c:467
RAX: 000000000003271c RBX: 000000000003268d RCX: 00000000000324b0
nf_hook.constprop.0+0x193/0x2c0 include/linux/netfilter.h:205
RDX: 0000001b31020000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 0000000000000029 R08: 0000000000000001 R09: 0000000001135940
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
NF_HOOK include/linux/netfilter.h:248 [inline]
ndisc_send_skb+0x83b/0x11e0 net/ipv6/ndisc.c:483
R13: 00007ffc26c17570 R14: 000000000003264b R15: 00007ffc26c17580
ndisc_send_rs+0x129/0x680 net/ipv6/ndisc.c:677
addrconf_rs_timer+0x289/0x5a0 net/ipv6/addrconf.c:3757
call_timer_fn+0x161/0x670 kernel/time/timer.c:1279
expire_timers kernel/time/timer.c:1318 [inline]
__run_timers kernel/time/timer.c:1636 [inline]
__run_timers kernel/time/timer.c:1604 [inline]
run_timer_softirq+0x5b7/0x1520 kernel/time/timer.c:1649
__do_softirq+0x244/0x9a0 kernel/softirq.c:288
invoke_softirq kernel/softirq.c:368 [inline]
irq_exit+0x160/0x1b0 kernel/softirq.c:409
exiting_irq arch/x86/include/asm/apic.h:648 [inline]
smp_apic_timer_interrupt+0x146/0x5e0 arch/x86/kernel/apic/apic.c:1102
apic_timer_interrupt+0x96/0xa0 arch/x86/entry/entry_64.S:792
</IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:779
[inline]
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160
[inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x95/0xe0
kernel/locking/spinlock.c:192
RSP: 0018:ffff888087df7720 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff10
RAX: 1ffffffff0ee2d21 RBX: 0000000000000282 RCX: 1ffffffff0f56888
RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000282
RBP: ffff888087df7730 R08: ffff8880a8e92000 R09: 0000000000000000
R10: 0000000000000000 R11: ffff8880a8e92000 R12: ffffffff87820620
R13: ffff8880825aa1a0 R14: 0000000025d0311e R15: ffffffff81c1fb4f
spin_unlock_irqrestore include/linux/spinlock.h:372 [inline]
kasan_end_report+0x32/0x4f mm/kasan/report.c:174
kasan_report_error mm/kasan/report.c:356 [inline]
kasan_report mm/kasan/report.c:409 [inline]
kasan_report.cold+0x130/0x2af mm/kasan/report.c:393
check_memory_region_inline mm/kasan/kasan.c:260 [inline]
check_memory_region+0x123/0x190 mm/kasan/kasan.c:267
memset+0x24/0x40 mm/kasan/kasan.c:285
memset include/linux/string.h:332 [inline]
__ext4_expand_extra_isize+0x14f/0x220 fs/ext4/inode.c:5763
ext4_try_to_expand_extra_isize fs/ext4/inode.c:5815 [inline]
ext4_mark_inode_dirty+0x664/0x860 fs/ext4/inode.c:5891
ext4_dirty_inode+0x73/0xa0 fs/ext4/inode.c:5925
__mark_inode_dirty+0x54c/0x1040 fs/fs-writeback.c:2144
mark_inode_dirty include/linux/fs.h:2019 [inline]
generic_write_end+0x1b7/0x290 fs/buffer.c:2218
ext4_da_write_end+0x344/0x8e0 fs/ext4/inode.c:3187
generic_perform_write+0x29f/0x480 mm/filemap.c:3058
__generic_file_write_iter+0x239/0x5b0 mm/filemap.c:3172
ext4_file_write_iter+0x2ac/0xe90 fs/ext4/file.c:268
call_write_iter include/linux/fs.h:1777 [inline]
new_sync_write fs/read_write.c:469 [inline]
__vfs_write+0x4a7/0x6b0 fs/read_write.c:482
vfs_write+0x198/0x500 fs/read_write.c:544
SYSC_write fs/read_write.c:590 [inline]
SyS_write+0xfd/0x230 fs/read_write.c:582
do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x7f760cd4c19d
RSP: 002b:00007f760b2ed000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 000000000000004b RCX: 00007f760cd4c19d
RDX: 000000000000004b RSI: 0000000001161a90 RDI: 0000000000000005
RBP: 0000000001161a90 R08: 6d203a5d33373137 R09: 6874617068637461
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 00007f760b2ed480 R14: 0000000000000001 R15: 0000000001161890
Code: 3c 11 00 0f 85 dc 14 00 00 48 8b b5 08 ff ff ff 89 c0 48 8b 56 38 48
8d 1c c2 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 <80> 3c 02 00
0f 85 dd 14 00 00 48 8b 03 48 89 85 c8 fe ff ff 0f
RIP: ip6t_do_table+0x289/0x1860 net/ipv6/netfilter/ip6_tables.c:293 RSP:
ffff8880aee07828
Kernel Offset: disabled
Rebooting in 86400 seconds..
---
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.
syzbot found the following crash on:
HEAD commit: 43598c57 Linux 4.14.156
git tree: linux-4.14.y
console output: https://syzkaller.appspot.com/x/log.txt?x=137ff586e00000
kernel config: https://syzkaller.appspot.com/x/.config?x=1a4783d222b56f4
dashboard link: https://syzkaller.appspot.com/bug?extid=0ad871b1af1ceef68c0a
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+0ad871...@syzkaller.appspotmail.com
EXT4-fs (sda1): Unrecognized mount
option "smackfsroot=debug_want_extra_isize" or missing value
==================================================================
BUG: KASAN: slab-out-of-bounds in memset include/linux/string.h:332 [inline]
BUG: KASAN: slab-out-of-bounds in __ext4_expand_extra_isize+0x14f/0x220
fs/ext4/inode.c:5763
Write of size 634401054 at addr ffff8880825aa1a0 by task rs:main Q:Reg/6826
CPU: 0 PID: 6826 Comm: rs:main Q:Reg Not tainted 4.14.156-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x142/0x197 lib/dump_stack.c:58
print_address_description.cold+0x7c/0x1dc mm/kasan/report.c:252
kasan_report_error mm/kasan/report.c:351 [inline]
kasan_report mm/kasan/report.c:409 [inline]
kasan_report.cold+0xa9/0x2af mm/kasan/report.c:393
check_memory_region_inline mm/kasan/kasan.c:260 [inline]
check_memory_region+0x123/0x190 mm/kasan/kasan.c:267
memset+0x24/0x40 mm/kasan/kasan.c:285
memset include/linux/string.h:332 [inline]
__ext4_expand_extra_isize+0x14f/0x220 fs/ext4/inode.c:5763
ext4_try_to_expand_extra_isize fs/ext4/inode.c:5815 [inline]
ext4_mark_inode_dirty+0x664/0x860 fs/ext4/inode.c:5891
ext4_dirty_inode+0x73/0xa0 fs/ext4/inode.c:5925
__mark_inode_dirty+0x54c/0x1040 fs/fs-writeback.c:2144
mark_inode_dirty include/linux/fs.h:2019 [inline]
generic_write_end+0x1b7/0x290 fs/buffer.c:2218
ext4_da_write_end+0x344/0x8e0 fs/ext4/inode.c:3187
generic_perform_write+0x29f/0x480 mm/filemap.c:3058
------------[ cut here ]------------
WARNING: CPU: 1 PID: 7002 at mm/vmacache.c:64 vmacache_find+0x1db/0x270
mm/vmacache.c:64
Kernel panic - not syncing: panic_on_warn set ...
__generic_file_write_iter+0x239/0x5b0 mm/filemap.c:3172
ext4_file_write_iter+0x2ac/0xe90 fs/ext4/file.c:268
call_write_iter include/linux/fs.h:1777 [inline]
new_sync_write fs/read_write.c:469 [inline]
__vfs_write+0x4a7/0x6b0 fs/read_write.c:482
vfs_write+0x198/0x500 fs/read_write.c:544
SYSC_write fs/read_write.c:590 [inline]
SyS_write+0xfd/0x230 fs/read_write.c:582
do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x7f760cd4c19d
RSP: 002b:00007f760b2ed000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 000000000000004b RCX: 00007f760cd4c19d
RDX: 000000000000004b RSI: 0000000001161a90 RDI: 0000000000000005
RBP: 0000000001161a90 R08: 6d203a5d33373137 R09: 6874617068637461
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 00007f760b2ed480 R14: 0000000000000001 R15: 0000000001161890
CPU: 1 PID: 7002 Comm: syz-executor.4 Not tainted 4.14.156-syzkaller #0
The buggy address belongs to the page:
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
page:ffffea0002096a80 count:2 mapcount:0 mapping:ffff8880a45d5560
index:0x427
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x142/0x197 lib/dump_stack.c:58
flags: 0x1fffc0000001074(referenced|dirty|lru|active|private)
raw: 01fffc0000001074 ffff8880a45d5560 0000000000000427 00000002ffffffff
panic+0x1f9/0x42d kernel/panic.c:183
raw: ffffea000207c920 ffffea0002040aa0 ffff88807f2b7150 ffff88821b7321c0
page dumped because: kasan: bad access detected
page->mem_cgroup:ffff88821b7321c0
Memory state around the buggy address:
__warn.cold+0x2f/0x2f kernel/panic.c:547
ffff888082801f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffff888082801f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> ffff888082802000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
report_bug+0x216/0x254 lib/bug.c:186
^
ffff888082802080: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb
fixup_bug arch/x86/kernel/traps.c:177 [inline]
fixup_bug arch/x86/kernel/traps.c:172 [inline]
do_error_trap+0x1bb/0x310 arch/x86/kernel/traps.c:295
ffff888082802100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:314
Modules linked in:
invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:963
RIP: 0010:vmacache_find+0x1db/0x270 mm/vmacache.c:64
CPU: 0 PID: 6826 Comm: rs:main Q:Reg Tainted: G B
4.14.156-syzkaller #0
RSP: 0000:ffff8880587afdf8 EFLAGS: 00010297
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
task: ffff8880a8e92000 task.stack: ffff888087df0000
RAX: ffff8880587a0600 RBX: 0000000000000000 RCX: ffff8880587a0e80
RIP: 0010:ip6t_do_table+0x289/0x1860 net/ipv6/netfilter/ip6_tables.c:293
RSP: 0018:ffff8880aee07828 EFLAGS: 00010246
RDX: 0000000000000000 RSI: 0000001b31020000 RDI: ffff888082884ef0
RBP: ffff8880587afe28 R08: 0000000000000001 R09: ffff8880587a0ea0
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff1101097f647
RDX: 0000000000000000 RSI: ffff888084bfb200 RDI: ffff888084bfb238
R10: ffff8880587a0e80 R11: ffff8880587a0600 R12: dffffc0000000000
RBP: ffff8880aee079e0 R08: 0000000000000001 R09: 0000000000000000
R13: ffff8880965f0cc0 R14: ffff888082884eb0 R15: ffff8880587a0600
R10: 0000000000000001 R11: ffff8880a8e92000 R12: ffff8880aee07ab8
R13: ffff88809a5c3a40 R14: ffff8880aee07ab8 R15: ffff8880aee07ab8
find_vma+0x21/0x150 mm/mmap.c:2155
FS: 00007f760b2ee700(0000) GS:ffff8880aee00000(0000) knlGS:0000000000000000
__do_page_fault+0x2fd/0xb80 arch/x86/mm/fault.c:1366
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000104d678 CR3: 0000000099c2b000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
do_page_fault+0x71/0x511 arch/x86/mm/fault.c:1495
page_fault+0x45/0x50 arch/x86/entry/entry_64.S:1122
RIP: 0033:0x40e26e
RSP: 002b:00007ffc26c17540 EFLAGS: 00010202
ip6table_security_hook+0x65/0x80 net/ipv6/netfilter/ip6table_security.c:45
nf_hook_entry_hookfn include/linux/netfilter.h:108 [inline]
nf_hook_slow+0xaf/0x1b0 net/netfilter/core.c:467
RAX: 000000000003271c RBX: 000000000003268d RCX: 00000000000324b0
nf_hook.constprop.0+0x193/0x2c0 include/linux/netfilter.h:205
RDX: 0000001b31020000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 0000000000000029 R08: 0000000000000001 R09: 0000000001135940
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
NF_HOOK include/linux/netfilter.h:248 [inline]
ndisc_send_skb+0x83b/0x11e0 net/ipv6/ndisc.c:483
R13: 00007ffc26c17570 R14: 000000000003264b R15: 00007ffc26c17580
ndisc_send_rs+0x129/0x680 net/ipv6/ndisc.c:677
addrconf_rs_timer+0x289/0x5a0 net/ipv6/addrconf.c:3757
call_timer_fn+0x161/0x670 kernel/time/timer.c:1279
expire_timers kernel/time/timer.c:1318 [inline]
__run_timers kernel/time/timer.c:1636 [inline]
__run_timers kernel/time/timer.c:1604 [inline]
run_timer_softirq+0x5b7/0x1520 kernel/time/timer.c:1649
__do_softirq+0x244/0x9a0 kernel/softirq.c:288
invoke_softirq kernel/softirq.c:368 [inline]
irq_exit+0x160/0x1b0 kernel/softirq.c:409
exiting_irq arch/x86/include/asm/apic.h:648 [inline]
smp_apic_timer_interrupt+0x146/0x5e0 arch/x86/kernel/apic/apic.c:1102
apic_timer_interrupt+0x96/0xa0 arch/x86/entry/entry_64.S:792
</IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:779
[inline]
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160
[inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x95/0xe0
kernel/locking/spinlock.c:192
RSP: 0018:ffff888087df7720 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff10
RAX: 1ffffffff0ee2d21 RBX: 0000000000000282 RCX: 1ffffffff0f56888
RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000282
RBP: ffff888087df7730 R08: ffff8880a8e92000 R09: 0000000000000000
R10: 0000000000000000 R11: ffff8880a8e92000 R12: ffffffff87820620
R13: ffff8880825aa1a0 R14: 0000000025d0311e R15: ffffffff81c1fb4f
spin_unlock_irqrestore include/linux/spinlock.h:372 [inline]
kasan_end_report+0x32/0x4f mm/kasan/report.c:174
kasan_report_error mm/kasan/report.c:356 [inline]
kasan_report mm/kasan/report.c:409 [inline]
kasan_report.cold+0x130/0x2af mm/kasan/report.c:393
check_memory_region_inline mm/kasan/kasan.c:260 [inline]
check_memory_region+0x123/0x190 mm/kasan/kasan.c:267
memset+0x24/0x40 mm/kasan/kasan.c:285
memset include/linux/string.h:332 [inline]
__ext4_expand_extra_isize+0x14f/0x220 fs/ext4/inode.c:5763
ext4_try_to_expand_extra_isize fs/ext4/inode.c:5815 [inline]
ext4_mark_inode_dirty+0x664/0x860 fs/ext4/inode.c:5891
ext4_dirty_inode+0x73/0xa0 fs/ext4/inode.c:5925
__mark_inode_dirty+0x54c/0x1040 fs/fs-writeback.c:2144
mark_inode_dirty include/linux/fs.h:2019 [inline]
generic_write_end+0x1b7/0x290 fs/buffer.c:2218
ext4_da_write_end+0x344/0x8e0 fs/ext4/inode.c:3187
generic_perform_write+0x29f/0x480 mm/filemap.c:3058
__generic_file_write_iter+0x239/0x5b0 mm/filemap.c:3172
ext4_file_write_iter+0x2ac/0xe90 fs/ext4/file.c:268
call_write_iter include/linux/fs.h:1777 [inline]
new_sync_write fs/read_write.c:469 [inline]
__vfs_write+0x4a7/0x6b0 fs/read_write.c:482
vfs_write+0x198/0x500 fs/read_write.c:544
SYSC_write fs/read_write.c:590 [inline]
SyS_write+0xfd/0x230 fs/read_write.c:582
do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x7f760cd4c19d
RSP: 002b:00007f760b2ed000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 000000000000004b RCX: 00007f760cd4c19d
RDX: 000000000000004b RSI: 0000000001161a90 RDI: 0000000000000005
RBP: 0000000001161a90 R08: 6d203a5d33373137 R09: 6874617068637461
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 00007f760b2ed480 R14: 0000000000000001 R15: 0000000001161890
Code: 3c 11 00 0f 85 dc 14 00 00 48 8b b5 08 ff ff ff 89 c0 48 8b 56 38 48
8d 1c c2 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 <80> 3c 02 00
0f 85 dd 14 00 00 48 8b 03 48 89 85 c8 fe ff ff 0f
RIP: ip6t_do_table+0x289/0x1860 net/ipv6/netfilter/ip6_tables.c:293 RSP:
ffff8880aee07828
Kernel Offset: disabled
Rebooting in 86400 seconds..
---
This bug is generated by a bot. It may contain errors.
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syzbot
Mar 24, 2020, 1:12:09 AM3/24/20
to syzkaller...@googlegroups.com
Auto-closing this bug as obsolete.
Crashes did not happen for a while, no reproducer and no activity.
Crashes did not happen for a while, no reproducer and no activity.
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