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WARNING in __blkdev_put

Status: auto-closed as invalid on 2019/02/22 14:29
First crash: 2099d, last: 2099d
Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in __blkdev_put fs 2 2019d 2018d 0/26 auto-closed as invalid on 2019/04/07 01:07
upstream WARNING in __blkdev_put (2) fs syz 3082 1712d 1719d 12/26 fixed on 2019/09/06 20:45
linux-4.19 WARNING in __blkdev_put syz error 1 575d 575d 0/1 upstream: reported syz repro on 2022/09/22 09:06

Sample crash report:
Buffer I/O error on dev loop1p1, logical block 1, async page read
blk_update_request: I/O error, dev loop1, sector 1
Buffer I/O error on dev loop1p1, logical block 0, async page read
Buffer I/O error on dev loop1p1, logical block 1, async page read
------------[ cut here ]------------
WARNING: CPU: 1 PID: 10600 at fs/block_dev.c:1584 __blkdev_put+0x6d6/0x840 fs/block_dev.c:1584
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 10600 Comm: syz-executor6 Not tainted 4.9.113-g47bbcd6 #10
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff88019ce67b60 ffffffff81eb32a9 ffffffff83c48980 00000000ffffffff
 0000000000000000 0000000000000001 0000000000000630 ffff88019ce67c20
 ffffffff81421a55 0000000041b58ab3 ffffffff843bb788 ffffffff81421896
Call Trace:
 [<ffffffff81eb32a9>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81eb32a9>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81421a55>] panic+0x1bf/0x3bc kernel/panic.c:179
 [<ffffffff81421d41>] __warn.cold.9+0xc1/0x17f kernel/panic.c:542
 [<ffffffff8113684c>] warn_slowpath_null+0x2c/0x40 kernel/panic.c:585
 [<ffffffff816311d6>] __blkdev_put+0x6d6/0x840 fs/block_dev.c:1584
 [<ffffffff81632125>] blkdev_put+0x85/0x560 fs/block_dev.c:1663
 [<ffffffff8163268b>] blkdev_close+0x8b/0xb0 fs/block_dev.c:1670
 [<ffffffff815782e3>] __fput+0x263/0x700 fs/file_table.c:208
 [<ffffffff81578805>] ____fput+0x15/0x20 fs/file_table.c:244
 [<ffffffff8119838c>] task_work_run+0x10c/0x180 kernel/task_work.c:116
 [<ffffffff8100559c>] tracehook_notify_resume include/linux/tracehook.h:191 [inline]
 [<ffffffff8100559c>] exit_to_usermode_loop+0xfc/0x120 arch/x86/entry/common.c:161
 [<ffffffff810064d4>] prepare_exit_to_usermode arch/x86/entry/common.c:191 [inline]
 [<ffffffff810064d4>] syscall_return_slowpath arch/x86/entry/common.c:260 [inline]
 [<ffffffff810064d4>] do_syscall_64+0x364/0x490 arch/x86/entry/common.c:287
 [<ffffffff839f9f93>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2018/07/20 22:21 https://android.googlesource.com/kernel/common android-4.9 47bbcd6bf8f9 af255b09 .config console log report ci-android-49-kasan-gce-root
* Struck through repros no longer work on HEAD.