KASAN: slab-out-of-bounds Write in f2fs_build_segment_manager
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syzbot
01.10.2020, 00:22:1501.10.20
an syzkaller-a...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: 2a7d5238 ANDROID: rpmsg: core: Add signal API support
git tree: android12-5.4
console output: https://syzkaller.appspot.com/x/log.txt?x=1290979d900000
kernel config: https://syzkaller.appspot.com/x/.config?x=280f7b0add2e0c6e
dashboard link: https://syzkaller.appspot.com/bug?extid=20574e0eacdbd09cf597
compiler: Android (6032204 based on r370808) clang version 10.0.1 (https://android.googlesource.com/toolchain/llvm-project 6e765c10313d15c02ab29977a82938f66742c3a9)
Unfortunately, I don't have any reproducer for this issue yet.
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+20574e...@syzkaller.appspotmail.com
RSP: 002b:00007f063ba79a88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f063ba79b20 RCX: 00000000004607ea
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f063ba79ae0
RBP: 00007f063ba79ae0 R08: 00007f063ba79b20 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000
R13: 0000000020000100 R14: 0000000020000a40 R15: 0000000020000180
---[ end trace 55e1b2583f1c2f35 ]---
==================================================================
BUG: KASAN: slab-out-of-bounds in seg_info_from_raw_sit fs/f2fs/segment.h:351 [inline]
BUG: KASAN: slab-out-of-bounds in build_sit_entries fs/f2fs/segment.c:4216 [inline]
BUG: KASAN: slab-out-of-bounds in f2fs_build_segment_manager+0x45ed/0x8880 fs/f2fs/segment.c:4779
Write of size 64 at addr ffff88817fa2d200 by task syz-executor.2/18336
CPU: 1 PID: 18336 Comm: syz-executor.2 Tainted: G W 5.4.68-syzkaller-00474-g2a7d52383a14 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1b0/0x21e lib/dump_stack.c:118
print_address_description+0x96/0x5d0 mm/kasan/report.c:374
__kasan_report+0x14b/0x1c0 mm/kasan/report.c:506
kasan_report+0x27/0x50 mm/kasan/common.c:634
check_memory_region_inline mm/kasan/generic.c:181 [inline]
check_memory_region+0x2b5/0x2f0 mm/kasan/generic.c:191
memcpy+0x38/0x50 mm/kasan/common.c:123
seg_info_from_raw_sit fs/f2fs/segment.h:351 [inline]
build_sit_entries fs/f2fs/segment.c:4216 [inline]
f2fs_build_segment_manager+0x45ed/0x8880 fs/f2fs/segment.c:4779
f2fs_fill_super+0x691a/0x9a40 fs/f2fs/super.c:3625
mount_bdev+0x22d/0x340 fs/super.c:1417
legacy_get_tree+0xde/0x170 fs/fs_context.c:647
vfs_get_tree+0x85/0x260 fs/super.c:1547
do_new_mount fs/namespace.c:2822 [inline]
do_mount+0x1883/0x2630 fs/namespace.c:3142
ksys_mount+0xc2/0xf0 fs/namespace.c:3351
__do_sys_mount fs/namespace.c:3365 [inline]
__se_sys_mount fs/namespace.c:3362 [inline]
__x64_sys_mount+0xb1/0xc0 fs/namespace.c:3362
do_syscall_64+0xcb/0x150 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x4607ea
Code: b8 a6 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 ad 89 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 8a 89 fb ff c3 66 0f 1f 84 00 00 00 00 00
RSP: 002b:00007f063ba79a88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f063ba79b20 RCX: 00000000004607ea
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f063ba79ae0
RBP: 00007f063ba79ae0 R08: 00007f063ba79b20 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000
R13: 0000000020000100 R14: 0000000020000a40 R15: 0000000020000180
Allocated by task 18336:
save_stack mm/kasan/common.c:69 [inline]
set_track mm/kasan/common.c:77 [inline]
__kasan_kmalloc+0x117/0x1b0 mm/kasan/common.c:510
__kmalloc+0xf7/0x2c0 mm/slub.c:3848
__kmalloc_node include/linux/slab.h:422 [inline]
kmalloc_node include/linux/slab.h:599 [inline]
kvmalloc_node+0xc2/0x120 mm/util.c:564
kvmalloc include/linux/mm.h:690 [inline]
f2fs_kvmalloc fs/f2fs/f2fs.h:3027 [inline]
f2fs_kvzalloc fs/f2fs/f2fs.h:3033 [inline]
build_sit_info fs/f2fs/segment.c:4046 [inline]
f2fs_build_segment_manager+0xe57/0x8880 fs/f2fs/segment.c:4768
f2fs_fill_super+0x691a/0x9a40 fs/f2fs/super.c:3625
mount_bdev+0x22d/0x340 fs/super.c:1417
legacy_get_tree+0xde/0x170 fs/fs_context.c:647
vfs_get_tree+0x85/0x260 fs/super.c:1547
do_new_mount fs/namespace.c:2822 [inline]
do_mount+0x1883/0x2630 fs/namespace.c:3142
ksys_mount+0xc2/0xf0 fs/namespace.c:3351
__do_sys_mount fs/namespace.c:3365 [inline]
__se_sys_mount fs/namespace.c:3362 [inline]
__x64_sys_mount+0xb1/0xc0 fs/namespace.c:3362
do_syscall_64+0xcb/0x150 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x44/0xa9
Freed by task 17715:
save_stack mm/kasan/common.c:69 [inline]
set_track mm/kasan/common.c:77 [inline]
kasan_set_free_info mm/kasan/common.c:332 [inline]
__kasan_slab_free+0x168/0x220 mm/kasan/common.c:471
slab_free_hook mm/slub.c:1443 [inline]
slab_free_freelist_hook+0xd0/0x150 mm/slub.c:1476
slab_free mm/slub.c:3041 [inline]
kfree+0x12b/0x5d0 mm/slub.c:4002
bpf_check+0xb5bb/0xe710 kernel/bpf/verifier.c:9479
bpf_prog_load kernel/bpf/syscall.c:1723 [inline]
__do_sys_bpf+0x82c3/0xbf30 kernel/bpf/syscall.c:2888
do_syscall_64+0xcb/0x150 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x44/0xa9
The buggy address belongs to the object at ffff88817fa2c000
which belongs to the cache kmalloc-8k of size 8192
The buggy address is located 4608 bytes inside of
8192-byte region [ffff88817fa2c000, ffff88817fa2e000)
The buggy address belongs to the page:
page:ffffea0005fe8a00 refcount:1 mapcount:0 mapping:ffff8881da80c500 index:0x0 compound_mapcount: 0
flags: 0x8000000000010200(slab|head)
raw: 8000000000010200 dead000000000100 dead000000000122 ffff8881da80c500
raw: 0000000000000000 0000000080020002 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff88817fa2d100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffff88817fa2d180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff88817fa2d200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
^
ffff88817fa2d280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff88817fa2d300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
------------[ cut here ]------------
WARNING: CPU: 1 PID: 18336 at fs/f2fs/segment.h:657 check_seg_range fs/f2fs/segment.c:4201 [inline]
WARNING: CPU: 1 PID: 18336 at fs/f2fs/segment.h:657 current_sit_addr fs/f2fs/segment.h:721 [inline]
WARNING: CPU: 1 PID: 18336 at fs/f2fs/segment.h:657 get_current_sit_page fs/f2fs/segment.c:3784 [inline]
WARNING: CPU: 1 PID: 18336 at fs/f2fs/segment.h:657 build_sit_entries fs/f2fs/segment.c:4206 [inline]
WARNING: CPU: 1 PID: 18336 at fs/f2fs/segment.h:657 f2fs_build_segment_manager+0x4958/0x8880 fs/f2fs/segment.c:4779
Modules linked in:
CPU: 1 PID: 18336 Comm: syz-executor.2 Tainted: G B W 5.4.68-syzkaller-00474-g2a7d52383a14 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:check_seg_range fs/f2fs/segment.c:4201 [inline]
RIP: 0010:current_sit_addr fs/f2fs/segment.h:721 [inline]
RIP: 0010:get_current_sit_page fs/f2fs/segment.c:3784 [inline]
RIP: 0010:build_sit_entries fs/f2fs/segment.c:4206 [inline]
RIP: 0010:f2fs_build_segment_manager+0x4958/0x8880 fs/f2fs/segment.c:4779
Code: c8 00 00 00 45 85 e4 0f 84 b9 02 00 00 48 ff 44 24 10 e8 5b 6a 6f ff 41 ff cc 48 83 44 24 48 28 e9 fa f8 ff ff e8 48 6a 6f ff <0f> 0b 48 8b 9c 24 10 01 00 00 48 89 df be 08 00 00 00 e8 e1 f3 9c
RSP: 0018:ffff8881c7fcf700 EFLAGS: 00010246
RAX: ffffffff81d1fef8 RBX: 000000000000001e RCX: 0000000000040000
RDX: ffffc900020d5000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffff8881c7fcf910 R08: ffffffff81d1f971 R09: ffff88817fa2d700
R10: ffffed102ff45ae8 R11: 00000000000000fc R12: 0000000000000000
R13: ffff8881c666a15c R14: 000000000000001f R15: 0000000000000600
FS: 00007f063ba7a700(0000) GS:ffff8881db900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd41eb5c000 CR3: 0000000191bdf004 CR4: 00000000001606e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
f2fs_fill_super+0x691a/0x9a40 fs/f2fs/super.c:3625
mount_bdev+0x22d/0x340 fs/super.c:1417
legacy_get_tree+0xde/0x170 fs/fs_context.c:647
vfs_get_tree+0x85/0x260 fs/super.c:1547
do_new_mount fs/namespace.c:2822 [inline]
do_mount+0x1883/0x2630 fs/namespace.c:3142
ksys_mount+0xc2/0xf0 fs/namespace.c:3351
__do_sys_mount fs/namespace.c:3365 [inline]
__se_sys_mount fs/namespace.c:3362 [inline]
__x64_sys_mount+0xb1/0xc0 fs/namespace.c:3362
do_syscall_64+0xcb/0x150 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x4607ea
Code: b8 a6 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 ad 89 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 8a 89 fb ff c3 66 0f 1f 84 00 00 00 00 00
RSP: 002b:00007f063ba79a88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f063ba79b20 RCX: 00000000004607ea
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f063ba79ae0
RBP: 00007f063ba79ae0 R08: 00007f063ba79b20 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000
R13: 0000000020000100 R14: 0000000020000a40 R15: 0000000020000180
---[ end trace 55e1b2583f1c2f36 ]---
F2FS-fs (loop2): Wrong valid blocks 0 or segno 31
F2FS-fs (loop2): Failed to initialize F2FS segment manager (-117)
---
This report 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 issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot found the following issue on:
HEAD commit: 2a7d5238 ANDROID: rpmsg: core: Add signal API support
git tree: android12-5.4
console output: https://syzkaller.appspot.com/x/log.txt?x=1290979d900000
kernel config: https://syzkaller.appspot.com/x/.config?x=280f7b0add2e0c6e
dashboard link: https://syzkaller.appspot.com/bug?extid=20574e0eacdbd09cf597
compiler: Android (6032204 based on r370808) clang version 10.0.1 (https://android.googlesource.com/toolchain/llvm-project 6e765c10313d15c02ab29977a82938f66742c3a9)
Unfortunately, I don't have any reproducer for this issue yet.
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+20574e...@syzkaller.appspotmail.com
RSP: 002b:00007f063ba79a88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f063ba79b20 RCX: 00000000004607ea
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f063ba79ae0
RBP: 00007f063ba79ae0 R08: 00007f063ba79b20 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000
R13: 0000000020000100 R14: 0000000020000a40 R15: 0000000020000180
---[ end trace 55e1b2583f1c2f35 ]---
==================================================================
BUG: KASAN: slab-out-of-bounds in seg_info_from_raw_sit fs/f2fs/segment.h:351 [inline]
BUG: KASAN: slab-out-of-bounds in build_sit_entries fs/f2fs/segment.c:4216 [inline]
BUG: KASAN: slab-out-of-bounds in f2fs_build_segment_manager+0x45ed/0x8880 fs/f2fs/segment.c:4779
Write of size 64 at addr ffff88817fa2d200 by task syz-executor.2/18336
CPU: 1 PID: 18336 Comm: syz-executor.2 Tainted: G W 5.4.68-syzkaller-00474-g2a7d52383a14 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1b0/0x21e lib/dump_stack.c:118
print_address_description+0x96/0x5d0 mm/kasan/report.c:374
__kasan_report+0x14b/0x1c0 mm/kasan/report.c:506
kasan_report+0x27/0x50 mm/kasan/common.c:634
check_memory_region_inline mm/kasan/generic.c:181 [inline]
check_memory_region+0x2b5/0x2f0 mm/kasan/generic.c:191
memcpy+0x38/0x50 mm/kasan/common.c:123
seg_info_from_raw_sit fs/f2fs/segment.h:351 [inline]
build_sit_entries fs/f2fs/segment.c:4216 [inline]
f2fs_build_segment_manager+0x45ed/0x8880 fs/f2fs/segment.c:4779
f2fs_fill_super+0x691a/0x9a40 fs/f2fs/super.c:3625
mount_bdev+0x22d/0x340 fs/super.c:1417
legacy_get_tree+0xde/0x170 fs/fs_context.c:647
vfs_get_tree+0x85/0x260 fs/super.c:1547
do_new_mount fs/namespace.c:2822 [inline]
do_mount+0x1883/0x2630 fs/namespace.c:3142
ksys_mount+0xc2/0xf0 fs/namespace.c:3351
__do_sys_mount fs/namespace.c:3365 [inline]
__se_sys_mount fs/namespace.c:3362 [inline]
__x64_sys_mount+0xb1/0xc0 fs/namespace.c:3362
do_syscall_64+0xcb/0x150 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x4607ea
Code: b8 a6 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 ad 89 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 8a 89 fb ff c3 66 0f 1f 84 00 00 00 00 00
RSP: 002b:00007f063ba79a88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f063ba79b20 RCX: 00000000004607ea
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f063ba79ae0
RBP: 00007f063ba79ae0 R08: 00007f063ba79b20 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000
R13: 0000000020000100 R14: 0000000020000a40 R15: 0000000020000180
Allocated by task 18336:
save_stack mm/kasan/common.c:69 [inline]
set_track mm/kasan/common.c:77 [inline]
__kasan_kmalloc+0x117/0x1b0 mm/kasan/common.c:510
__kmalloc+0xf7/0x2c0 mm/slub.c:3848
__kmalloc_node include/linux/slab.h:422 [inline]
kmalloc_node include/linux/slab.h:599 [inline]
kvmalloc_node+0xc2/0x120 mm/util.c:564
kvmalloc include/linux/mm.h:690 [inline]
f2fs_kvmalloc fs/f2fs/f2fs.h:3027 [inline]
f2fs_kvzalloc fs/f2fs/f2fs.h:3033 [inline]
build_sit_info fs/f2fs/segment.c:4046 [inline]
f2fs_build_segment_manager+0xe57/0x8880 fs/f2fs/segment.c:4768
f2fs_fill_super+0x691a/0x9a40 fs/f2fs/super.c:3625
mount_bdev+0x22d/0x340 fs/super.c:1417
legacy_get_tree+0xde/0x170 fs/fs_context.c:647
vfs_get_tree+0x85/0x260 fs/super.c:1547
do_new_mount fs/namespace.c:2822 [inline]
do_mount+0x1883/0x2630 fs/namespace.c:3142
ksys_mount+0xc2/0xf0 fs/namespace.c:3351
__do_sys_mount fs/namespace.c:3365 [inline]
__se_sys_mount fs/namespace.c:3362 [inline]
__x64_sys_mount+0xb1/0xc0 fs/namespace.c:3362
do_syscall_64+0xcb/0x150 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x44/0xa9
Freed by task 17715:
save_stack mm/kasan/common.c:69 [inline]
set_track mm/kasan/common.c:77 [inline]
kasan_set_free_info mm/kasan/common.c:332 [inline]
__kasan_slab_free+0x168/0x220 mm/kasan/common.c:471
slab_free_hook mm/slub.c:1443 [inline]
slab_free_freelist_hook+0xd0/0x150 mm/slub.c:1476
slab_free mm/slub.c:3041 [inline]
kfree+0x12b/0x5d0 mm/slub.c:4002
bpf_check+0xb5bb/0xe710 kernel/bpf/verifier.c:9479
bpf_prog_load kernel/bpf/syscall.c:1723 [inline]
__do_sys_bpf+0x82c3/0xbf30 kernel/bpf/syscall.c:2888
do_syscall_64+0xcb/0x150 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x44/0xa9
The buggy address belongs to the object at ffff88817fa2c000
which belongs to the cache kmalloc-8k of size 8192
The buggy address is located 4608 bytes inside of
8192-byte region [ffff88817fa2c000, ffff88817fa2e000)
The buggy address belongs to the page:
page:ffffea0005fe8a00 refcount:1 mapcount:0 mapping:ffff8881da80c500 index:0x0 compound_mapcount: 0
flags: 0x8000000000010200(slab|head)
raw: 8000000000010200 dead000000000100 dead000000000122 ffff8881da80c500
raw: 0000000000000000 0000000080020002 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff88817fa2d100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffff88817fa2d180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff88817fa2d200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
^
ffff88817fa2d280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff88817fa2d300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
------------[ cut here ]------------
WARNING: CPU: 1 PID: 18336 at fs/f2fs/segment.h:657 check_seg_range fs/f2fs/segment.c:4201 [inline]
WARNING: CPU: 1 PID: 18336 at fs/f2fs/segment.h:657 current_sit_addr fs/f2fs/segment.h:721 [inline]
WARNING: CPU: 1 PID: 18336 at fs/f2fs/segment.h:657 get_current_sit_page fs/f2fs/segment.c:3784 [inline]
WARNING: CPU: 1 PID: 18336 at fs/f2fs/segment.h:657 build_sit_entries fs/f2fs/segment.c:4206 [inline]
WARNING: CPU: 1 PID: 18336 at fs/f2fs/segment.h:657 f2fs_build_segment_manager+0x4958/0x8880 fs/f2fs/segment.c:4779
Modules linked in:
CPU: 1 PID: 18336 Comm: syz-executor.2 Tainted: G B W 5.4.68-syzkaller-00474-g2a7d52383a14 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:check_seg_range fs/f2fs/segment.c:4201 [inline]
RIP: 0010:current_sit_addr fs/f2fs/segment.h:721 [inline]
RIP: 0010:get_current_sit_page fs/f2fs/segment.c:3784 [inline]
RIP: 0010:build_sit_entries fs/f2fs/segment.c:4206 [inline]
RIP: 0010:f2fs_build_segment_manager+0x4958/0x8880 fs/f2fs/segment.c:4779
Code: c8 00 00 00 45 85 e4 0f 84 b9 02 00 00 48 ff 44 24 10 e8 5b 6a 6f ff 41 ff cc 48 83 44 24 48 28 e9 fa f8 ff ff e8 48 6a 6f ff <0f> 0b 48 8b 9c 24 10 01 00 00 48 89 df be 08 00 00 00 e8 e1 f3 9c
RSP: 0018:ffff8881c7fcf700 EFLAGS: 00010246
RAX: ffffffff81d1fef8 RBX: 000000000000001e RCX: 0000000000040000
RDX: ffffc900020d5000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffff8881c7fcf910 R08: ffffffff81d1f971 R09: ffff88817fa2d700
R10: ffffed102ff45ae8 R11: 00000000000000fc R12: 0000000000000000
R13: ffff8881c666a15c R14: 000000000000001f R15: 0000000000000600
FS: 00007f063ba7a700(0000) GS:ffff8881db900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd41eb5c000 CR3: 0000000191bdf004 CR4: 00000000001606e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
f2fs_fill_super+0x691a/0x9a40 fs/f2fs/super.c:3625
mount_bdev+0x22d/0x340 fs/super.c:1417
legacy_get_tree+0xde/0x170 fs/fs_context.c:647
vfs_get_tree+0x85/0x260 fs/super.c:1547
do_new_mount fs/namespace.c:2822 [inline]
do_mount+0x1883/0x2630 fs/namespace.c:3142
ksys_mount+0xc2/0xf0 fs/namespace.c:3351
__do_sys_mount fs/namespace.c:3365 [inline]
__se_sys_mount fs/namespace.c:3362 [inline]
__x64_sys_mount+0xb1/0xc0 fs/namespace.c:3362
do_syscall_64+0xcb/0x150 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x4607ea
Code: b8 a6 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 ad 89 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 8a 89 fb ff c3 66 0f 1f 84 00 00 00 00 00
RSP: 002b:00007f063ba79a88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f063ba79b20 RCX: 00000000004607ea
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f063ba79ae0
RBP: 00007f063ba79ae0 R08: 00007f063ba79b20 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000
R13: 0000000020000100 R14: 0000000020000a40 R15: 0000000020000180
---[ end trace 55e1b2583f1c2f36 ]---
F2FS-fs (loop2): Wrong valid blocks 0 or segno 31
F2FS-fs (loop2): Failed to initialize F2FS segment manager (-117)
---
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syzbot
06.02.2021, 12:39:0906.02.21
an syzkaller-a...@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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