From: syzbot ci <syzbot+ciebc1a7ad3d6a80ae@syzkaller.appspotmail.com>
To: syzkaller-upstream-moderation@googlegroups.com
Cc: syzbot@lists.linux.dev
Subject: [moderation/CI] Re: loop: Detect write requests that failed to wait for completion.
Date: Sun, 11 Oct 2026 10:38:48 -0700 [thread overview]
Message-ID: <6acbc9a8.6d14cce4.2677ed.012d.GAE@google.com> (raw)
syzbot ci has tested the following series
[v3] loop: Detect write requests that failed to wait for completion.
https://lore.kernel.org/all/cc2910d3-3113-44d4-94ef-0c8d365fac9c@I-love.SAKURA.ne.jp
* [PATCH v3] loop: Detect write requests that failed to wait for completion.
and found the following issues:
* BUG: found I/O issued by syz.NUM.NUM/NUM but loop0 is no longer bound.
* BUG: found I/O issued by syz.NUM.NUM/NUM but loop2 is no longer bound.
Full report is available here:
https://ci.syzbot.org/series/d3a0b036-fd1e-44c6-8869-386ea1642385
***
BUG: found I/O issued by syz.NUM.NUM/NUM but loop0 is no longer bound.
tree: axboe
URL: https://kernel.googlesource.com/pub/scm/linux/kernel/git/axboe/linux.git
base: 4da93acb4f2ed06640255ad98801d0f0c734ff07
arch: amd64
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
config: https://ci.syzbot.org/builds/a23afb97-88bb-4fba-8885-d3062b5890e2/config
syz repro: https://ci.syzbot.org/findings/c9ad5ff9-784f-4528-805f-7971e0359600/syz_repro
BUG: found I/O issued by syz.0.760/7647 but loop0 is no longer bound.
Call Trace:
loop_queue_rq+0x232/0xc90 drivers/block/loop.c:1922
__blk_mq_issue_directly block/blk-mq.c:2708 [inline]
blk_mq_try_issue_directly+0x3f4/0x880 block/blk-mq.c:2768
blk_mq_submit_bio+0x21de/0x2bb0 block/blk-mq.c:3220
__submit_bio_noacct_mq block/blk-core.c:756 [inline]
submit_bio_noacct_nocheck+0x2f4/0xa40 block/blk-core.c:790
bh_submit fs/buffer.c:1146 [inline]
__bh_read fs/buffer.c:2943 [inline]
bh_readahead include/linux/buffer_head.h:437 [inline]
__breadahead+0x15c/0x1f0 fs/buffer.c:1359
nilfs_search_super_root+0x2be/0x1530 fs/nilfs2/recovery.c:891
load_nilfs+0x363/0xfb0 fs/nilfs2/the_nilfs.c:259
nilfs_fill_super+0x1a0/0x4e0 fs/nilfs2/super.c:1073
nilfs_get_tree+0x491/0x850 fs/nilfs2/super.c:1226
vfs_get_tree+0x92/0x2a0 fs/super.c:1932
fc_mount fs/namespace.c:1198 [inline]
do_new_mount_fc fs/namespace.c:3772 [inline]
do_new_mount+0x319/0xdc0 fs/namespace.c:3848
do_mount fs/namespace.c:4181 [inline]
__do_sys_mount fs/namespace.c:4397 [inline]
__se_sys_mount+0x31d/0x420 fs/namespace.c:4374
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
BUG: found I/O issued by syz.0.760/7647 but loop0 is no longer bound.
Call Trace:
loop_queue_rq+0x232/0xc90 drivers/block/loop.c:1922
__blk_mq_issue_directly block/blk-mq.c:2708 [inline]
blk_mq_try_issue_directly+0x3f4/0x880 block/blk-mq.c:2768
blk_mq_submit_bio+0x21de/0x2bb0 block/blk-mq.c:3220
__submit_bio_noacct_mq block/blk-core.c:756 [inline]
submit_bio_noacct_nocheck+0x2f4/0xa40 block/blk-core.c:790
bh_submit fs/buffer.c:1146 [inline]
__bh_read fs/buffer.c:2943 [inline]
bh_readahead include/linux/buffer_head.h:437 [inline]
__breadahead+0x15c/0x1f0 fs/buffer.c:1359
nilfs_search_super_root+0x2be/0x1530 fs/nilfs2/recovery.c:891
load_nilfs+0x363/0xfb0 fs/nilfs2/the_nilfs.c:259
nilfs_fill_super+0x1a0/0x4e0 fs/nilfs2/super.c:1073
nilfs_get_tree+0x491/0x850 fs/nilfs2/super.c:1226
vfs_get_tree+0x92/0x2a0 fs/super.c:1932
fc_mount fs/namespace.c:1198 [inline]
do_new_mount_fc fs/namespace.c:3772 [inline]
do_new_mount+0x319/0xdc0 fs/namespace.c:3848
do_mount fs/namespace.c:4181 [inline]
__do_sys_mount fs/namespace.c:4397 [inline]
__se_sys_mount+0x31d/0x420 fs/namespace.c:4374
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
***
BUG: found I/O issued by syz.NUM.NUM/NUM but loop2 is no longer bound.
tree: axboe
URL: https://kernel.googlesource.com/pub/scm/linux/kernel/git/axboe/linux.git
base: 4da93acb4f2ed06640255ad98801d0f0c734ff07
arch: amd64
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
config: https://ci.syzbot.org/builds/a23afb97-88bb-4fba-8885-d3062b5890e2/config
syz repro: https://ci.syzbot.org/findings/bad9ae98-7887-4209-8226-7e84bb070faa/syz_repro
BUG: found I/O issued by syz.2.866/7955 but loop2 is no longer bound.
Call Trace:
loop_queue_rq+0x232/0xc90 drivers/block/loop.c:1922
__blk_mq_issue_directly block/blk-mq.c:2708 [inline]
blk_mq_try_issue_directly+0x3f4/0x880 block/blk-mq.c:2768
blk_mq_submit_bio+0x21de/0x2bb0 block/blk-mq.c:3220
__submit_bio_noacct_mq block/blk-core.c:756 [inline]
submit_bio_noacct_nocheck+0x2f4/0xa40 block/blk-core.c:790
bh_submit fs/buffer.c:1146 [inline]
__bh_read fs/buffer.c:2943 [inline]
bh_readahead include/linux/buffer_head.h:437 [inline]
__breadahead+0x15c/0x1f0 fs/buffer.c:1359
nilfs_search_super_root+0x2be/0x1530 fs/nilfs2/recovery.c:891
load_nilfs+0x363/0xfb0 fs/nilfs2/the_nilfs.c:259
nilfs_fill_super+0x1a0/0x4e0 fs/nilfs2/super.c:1073
nilfs_get_tree+0x491/0x850 fs/nilfs2/super.c:1226
vfs_get_tree+0x92/0x2a0 fs/super.c:1932
fc_mount fs/namespace.c:1198 [inline]
do_new_mount_fc fs/namespace.c:3772 [inline]
do_new_mount+0x319/0xdc0 fs/namespace.c:3848
do_mount fs/namespace.c:4181 [inline]
__do_sys_mount fs/namespace.c:4397 [inline]
__se_sys_mount+0x31d/0x420 fs/namespace.c:4374
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
BUG: found I/O issued by syz.2.866/7955 but loop2 is no longer bound.
Call Trace:
loop_queue_rq+0x232/0xc90 drivers/block/loop.c:1922
__blk_mq_issue_directly block/blk-mq.c:2708 [inline]
blk_mq_try_issue_directly+0x3f4/0x880 block/blk-mq.c:2768
blk_mq_submit_bio+0x21de/0x2bb0 block/blk-mq.c:3220
__submit_bio_noacct_mq block/blk-core.c:756 [inline]
submit_bio_noacct_nocheck+0x2f4/0xa40 block/blk-core.c:790
bh_submit fs/buffer.c:1146 [inline]
__bh_read fs/buffer.c:2943 [inline]
bh_readahead include/linux/buffer_head.h:437 [inline]
__breadahead+0x15c/0x1f0 fs/buffer.c:1359
nilfs_search_super_root+0x2be/0x1530 fs/nilfs2/recovery.c:891
load_nilfs+0x363/0xfb0 fs/nilfs2/the_nilfs.c:259
nilfs_fill_super+0x1a0/0x4e0 fs/nilfs2/super.c:1073
nilfs_get_tree+0x491/0x850 fs/nilfs2/super.c:1226
vfs_get_tree+0x92/0x2a0 fs/super.c:1932
fc_mount fs/namespace.c:1198 [inline]
do_new_mount_fc fs/namespace.c:3772 [inline]
do_new_mount+0x319/0xdc0 fs/namespace.c:3848
do_mount fs/namespace.c:4181 [inline]
__do_sys_mount fs/namespace.c:4397 [inline]
__se_sys_mount+0x31d/0x420 fs/namespace.c:4374
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
BUG: found I/O issued by syz.2.866/7955 but loop2 is no longer bound.
Call Trace:
loop_queue_rq+0x232/0xc90 drivers/block/loop.c:1922
__blk_mq_issue_directly block/blk-mq.c:2708 [inline]
blk_mq_try_issue_directly+0x3f4/0x880 block/blk-mq.c:2768
blk_mq_submit_bio+0x21de/0x2bb0 block/blk-mq.c:3220
__submit_bio_noacct_mq block/blk-core.c:756 [inline]
submit_bio_noacct_nocheck+0x2f4/0xa40 block/blk-core.c:790
bh_submit fs/buffer.c:1146 [inline]
__bh_read fs/buffer.c:2943 [inline]
bh_readahead include/linux/buffer_head.h:437 [inline]
__breadahead+0x15c/0x1f0 fs/buffer.c:1359
nilfs_search_super_root+0x2be/0x1530 fs/nilfs2/recovery.c:891
load_nilfs+0x363/0xfb0 fs/nilfs2/the_nilfs.c:259
nilfs_fill_super+0x1a0/0x4e0 fs/nilfs2/super.c:1073
nilfs_get_tree+0x491/0x850 fs/nilfs2/super.c:1226
vfs_get_tree+0x92/0x2a0 fs/super.c:1932
fc_mount fs/namespace.c:1198 [inline]
do_new_mount_fc fs/namespace.c:3772 [inline]
do_new_mount+0x319/0xdc0 fs/namespace.c:3848
do_mount fs/namespace.c:4181 [inline]
__do_sys_mount fs/namespace.c:4397 [inline]
__se_sys_mount+0x31d/0x420 fs/namespace.c:4374
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
BUG: found I/O issued by syz.2.866/7955 but loop2 is no longer bound.
Call Trace:
loop_queue_rq+0x232/0xc90 drivers/block/loop.c:1922
__blk_mq_issue_directly block/blk-mq.c:2708 [inline]
blk_mq_try_issue_directly+0x3f4/0x880 block/blk-mq.c:2768
blk_mq_submit_bio+0x21de/0x2bb0 block/blk-mq.c:3220
__submit_bio_noacct_mq block/blk-core.c:756 [inline]
submit_bio_noacct_nocheck+0x2f4/0xa40 block/blk-core.c:790
bh_submit fs/buffer.c:1146 [inline]
__bh_read fs/buffer.c:2943 [inline]
bh_readahead include/linux/buffer_head.h:437 [inline]
__breadahead+0x15c/0x1f0 fs/buffer.c:1359
nilfs_search_super_root+0x2be/0x1530 fs/nilfs2/recovery.c:891
load_nilfs+0x363/0xfb0 fs/nilfs2/the_nilfs.c:259
nilfs_fill_super+0x1a0/0x4e0 fs/nilfs2/super.c:1073
nilfs_get_tree+0x491/0x850 fs/nilfs2/super.c:1226
vfs_get_tree+0x92/0x2a0 fs/super.c:1932
fc_mount fs/namespace.c:1198 [inline]
do_new_mount_fc fs/namespace.c:3772 [inline]
do_new_mount+0x319/0xdc0 fs/namespace.c:3848
do_mount fs/namespace.c:4181 [inline]
__do_sys_mount fs/namespace.c:4397 [inline]
__se_sys_mount+0x31d/0x420 fs/namespace.c:4374
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
BUG: found I/O issued by syz.2.866/7955 but loop2 is no longer bound.
Call Trace:
loop_queue_rq+0x232/0xc90 drivers/block/loop.c:1922
__blk_mq_issue_directly block/blk-mq.c:2708 [inline]
blk_mq_try_issue_directly+0x3f4/0x880 block/blk-mq.c:2768
blk_mq_submit_bio+0x21de/0x2bb0 block/blk-mq.c:3220
__submit_bio_noacct_mq block/blk-core.c:756 [inline]
submit_bio_noacct_nocheck+0x2f4/0xa40 block/blk-core.c:790
bh_submit fs/buffer.c:1146 [inline]
__bh_read fs/buffer.c:2943 [inline]
bh_readahead include/linux/buffer_head.h:437 [inline]
__breadahead+0x15c/0x1f0 fs/buffer.c:1359
nilfs_search_super_root+0x2be/0x1530 fs/nilfs2/recovery.c:891
load_nilfs+0x363/0xfb0 fs/nilfs2/the_nilfs.c:259
nilfs_fill_super+0x1a0/0x4e0 fs/nilfs2/super.c:1073
nilfs_get_tree+0x491/0x850 fs/nilfs2/super.c:1226
vfs_get_tree+0x92/0x2a0 fs/super.c:1932
fc_mount fs/namespace.c:1198 [inline]
do_new_mount_fc fs/namespace.c:3772 [inline]
do_new_mount+0x319/0xdc0 fs/namespace.c:3848
do_mount fs/namespace.c:4181 [inline]
__do_sys_mount fs/namespace.c:4397 [inline]
__se_sys_mount+0x31d/0x420 fs/namespace.c:4374
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
BUG: found I/O issued by syz.2.866/7955 but loop2 is no longer bound.
Call Trace:
loop_queue_rq+0x232/0xc90 drivers/block/loop.c:1922
__blk_mq_issue_directly block/blk-mq.c:2708 [inline]
blk_mq_try_issue_directly+0x3f4/0x880 block/blk-mq.c:2768
blk_mq_submit_bio+0x21de/0x2bb0 block/blk-mq.c:3220
__submit_bio_noacct_mq block/blk-core.c:756 [inline]
submit_bio_noacct_nocheck+0x2f4/0xa40 block/blk-core.c:790
bh_submit fs/buffer.c:1146 [inline]
__bh_read fs/buffer.c:2943 [inline]
bh_readahead include/linux/buffer_head.h:437 [inline]
__breadahead+0x15c/0x1f0 fs/buffer.c:1359
nilfs_search_super_root+0x2be/0x1530 fs/nilfs2/recovery.c:891
load_nilfs+0x363/0xfb0 fs/nilfs2/the_nilfs.c:259
nilfs_fill_super+0x1a0/0x4e0 fs/nilfs2/super.c:1073
nilfs_get_tree+0x491/0x850 fs/nilfs2/super.c:1226
vfs_get_tree+0x92/0x2a0 fs/super.c:1932
fc_mount fs/namespace.c:1198 [inline]
do_new_mount_fc fs/namespace.c:3772 [inline]
do_new_mount+0x319/0xdc0 fs/namespace.c:3848
do_mount fs/namespace.c:4181 [inline]
__do_sys_mount fs/namespace.c:4397 [inline]
__se_sys_mount+0x31d/0x420 fs/namespace.c:4374
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
BUG: found I/O issued by syz.2.866/7955 but loop2 is no longer bound.
Call Trace:
loop_queue_rq+0x232/0xc90 drivers/block/loop.c:1922
__blk_mq_issue_directly block/blk-mq.c:2708 [inline]
blk_mq_try_issue_directly+0x3f4/0x880 block/blk-mq.c:2768
blk_mq_submit_bio+0x21de/0x2bb0 block/blk-mq.c:3220
__submit_bio_noacct_mq block/blk-core.c:756 [inline]
submit_bio_noacct_nocheck+0x2f4/0xa40 block/blk-core.c:790
bh_submit fs/buffer.c:1146 [inline]
__bh_read fs/buffer.c:2943 [inline]
bh_readahead include/linux/buffer_head.h:437 [inline]
__breadahead+0x15c/0x1f0 fs/buffer.c:1359
nilfs_search_super_root+0x2be/0x1530 fs/nilfs2/recovery.c:891
load_nilfs+0x363/0xfb0 fs/nilfs2/the_nilfs.c:259
nilfs_fill_super+0x1a0/0x4e0 fs/nilfs2/super.c:1073
nilfs_get_tree+0x491/0x850 fs/nilfs2/super.c:1226
vfs_get_tree+0x92/0x2a0 fs/super.c:1932
fc_mount fs/namespace.c:1198 [inline]
do_new_mount_fc fs/namespace.c:3772 [inline]
do_new_mount+0x319/0xdc0 fs/namespace.c:3848
do_mount fs/namespace.c:4181 [inline]
__do_sys_mount fs/namespace.c:4397 [inline]
__se_sys_mount+0x31d/0x420 fs/namespace.c:4374
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
BUG: found I/O issued by syz.2.866/7955 but loop2 is no longer bound.
Call Trace:
loop_queue_rq+0x232/0xc90 drivers/block/loop.c:1922
__blk_mq_issue_directly block/blk-mq.c:2708 [inline]
blk_mq_try_issue_directly+0x3f4/0x880 block/blk-mq.c:2768
blk_mq_submit_bio+0x21de/0x2bb0 block/blk-mq.c:3220
__submit_bio_noacct_mq block/blk-core.c:756 [inline]
submit_bio_noacct_nocheck+0x2f4/0xa40 block/blk-core.c:790
bh_submit fs/buffer.c:1146 [inline]
__bh_read fs/buffer.c:2943 [inline]
bh_readahead include/linux/buffer_head.h:437 [inline]
__breadahead+0x15c/0x1f0 fs/buffer.c:1359
nilfs_search_super_root+0x2be/0x1530 fs/nilfs2/recovery.c:891
load_nilfs+0x363/0xfb0 fs/nilfs2/the_nilfs.c:259
nilfs_fill_super+0x1a0/0x4e0 fs/nilfs2/super.c:1073
nilfs_get_tree+0x491/0x850 fs/nilfs2/super.c:1226
vfs_get_tree+0x92/0x2a0 fs/super.c:1932
fc_mount fs/namespace.c:1198 [inline]
do_new_mount_fc fs/namespace.c:3772 [inline]
do_new_mount+0x319/0xdc0 fs/namespace.c:3848
do_mount fs/namespace.c:4181 [inline]
__do_sys_mount fs/namespace.c:4397 [inline]
__se_sys_mount+0x31d/0x420 fs/namespace.c:4374
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
BUG: found I/O issued by syz.2.866/7955 but loop2 is no longer bound.
Call Trace:
loop_queue_rq+0x232/0xc90 drivers/block/loop.c:1922
__blk_mq_issue_directly block/blk-mq.c:2708 [inline]
blk_mq_try_issue_directly+0x3f4/0x880 block/blk-mq.c:2768
blk_mq_submit_bio+0x21de/0x2bb0 block/blk-mq.c:3220
__submit_bio_noacct_mq block/blk-core.c:756 [inline]
submit_bio_noacct_nocheck+0x2f4/0xa40 block/blk-core.c:790
bh_submit fs/buffer.c:1146 [inline]
__bh_read fs/buffer.c:2943 [inline]
bh_readahead include/linux/buffer_head.h:437 [inline]
__breadahead+0x15c/0x1f0 fs/buffer.c:1359
nilfs_search_super_root+0x2be/0x1530 fs/nilfs2/recovery.c:891
load_nilfs+0x363/0xfb0 fs/nilfs2/the_nilfs.c:259
nilfs_fill_super+0x1a0/0x4e0 fs/nilfs2/super.c:1073
nilfs_get_tree+0x491/0x850 fs/nilfs2/super.c:1226
vfs_get_tree+0x92/0x2a0 fs/super.c:1932
fc_mount fs/namespace.c:1198 [inline]
do_new_mount_fc fs/namespace.c:3772 [inline]
do_new_mount+0x319/0xdc0 fs/namespace.c:3848
do_mount fs/namespace.c:4181 [inline]
__do_sys_mount fs/namespace.c:4397 [inline]
__se_sys_mount+0x31d/0x420 fs/namespace.c:4374
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
BUG: found I/O issued by syz.2.866/7955 but loop2 is no longer bound.
Call Trace:
loop_queue_rq+0x232/0xc90 drivers/block/loop.c:1922
__blk_mq_issue_directly block/blk-mq.c:2708 [inline]
blk_mq_try_issue_directly+0x3f4/0x880 block/blk-mq.c:2768
blk_mq_submit_bio+0x21de/0x2bb0 block/blk-mq.c:3220
__submit_bio_noacct_mq block/blk-core.c:756 [inline]
submit_bio_noacct_nocheck+0x2f4/0xa40 block/blk-core.c:790
bh_submit fs/buffer.c:1146 [inline]
__bh_read fs/buffer.c:2943 [inline]
bh_readahead include/linux/buffer_head.h:437 [inline]
__breadahead+0x15c/0x1f0 fs/buffer.c:1359
nilfs_search_super_root+0x2be/0x1530 fs/nilfs2/recovery.c:891
load_nilfs+0x363/0xfb0 fs/nilfs2/the_nilfs.c:259
nilfs_fill_super+0x1a0/0x4e0 fs/nilfs2/super.c:1073
nilfs_get_tree+0x491/0x850 fs/nilfs2/super.c:1226
vfs_get_tree+0x92/0x2a0 fs/super.c:1932
fc_mount fs/namespace.c:1198 [inline]
do_new_mount_fc fs/namespace.c:3772 [inline]
do_new_mount+0x319/0xdc0 fs/namespace.c:3848
do_mount fs/namespace.c:4181 [inline]
__do_sys_mount fs/namespace.c:4397 [inline]
__se_sys_mount+0x31d/0x420 fs/namespace.c:4374
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
BUG: found I/O issued by syz.2.866/7955 but loop2 is no longer bound.
Call Trace:
loop_queue_rq+0x232/0xc90 drivers/block/loop.c:1922
__blk_mq_issue_directly block/blk-mq.c:2708 [inline]
blk_mq_try_issue_directly+0x3f4/0x880 block/blk-mq.c:2768
blk_mq_submit_bio+0x21de/0x2bb0 block/blk-mq.c:3220
__submit_bio_noacct_mq block/blk-core.c:756 [inline]
submit_bio_noacct_nocheck+0x2f4/0xa40 block/blk-core.c:790
bh_submit fs/buffer.c:1146 [inline]
__bh_read fs/buffer.c:2943 [inline]
bh_readahead include/linux/buffer_head.h:437 [inline]
__breadahead+0x15c/0x1f0 fs/buffer.c:1359
nilfs_search_super_root+0x2be/0x1530 fs/nilfs2/recovery.c:891
load_nilfs+0x363/0xfb0 fs/nilfs2/the_nilfs.c:259
nilfs_fill_super+0x1a0/0x4e0 fs/nilfs2/super.c:1073
nilfs_get_tree+0x491/0x850 fs/nilfs2/super.c:1226
vfs_get_tree+0x92/0x2a0 fs/super.c:1932
fc_mount fs/namespace.c:1198 [inline]
do_new_mount_fc fs/namespace.c:3772 [inline]
do_new_mount+0x319/0xdc0 fs/namespace.c:3848
do_mount fs/namespace.c:4181 [inline]
__do_sys_mount fs/namespace.c:4397 [inline]
__se_sys_mount+0x31d/0x420 fs/namespace.c:4374
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
***
If these findings have caused you to resend the series or submit a
separate fix, please add the following tag to your commit message:
Tested-by: syzbot@syzkaller.appspotmail.com
---
This report is generated by a bot. It may contain errors.
syzbot ci engineers can be reached at syzkaller@googlegroups.com.
To test a fix for this bug, please reply with `#syz test`
(on a separate line) and attach the patch to the email.
Notes:
- The patch will be applied on top of the tested series (as an
incremental fix).
- To test a new version of the whole series, please send it directly
to syzbot@lists.linux.dev.
- Arguments like custom git repos and branches are not supported.
The email will later be sent to:
[axboe@kernel.dk bvanassche@acm.org eadavis@qq.com hch@lst.de jfs-discussion@lists.sourceforge.net linux-block@vger.kernel.org nilay@linux.ibm.com penguin-kernel@i-love.sakura.ne.jp shaggy@kernel.org]
If the report looks fine to you, reply with:
#syz upstream
If the report is a false positive, reply with
#syz invalid
next reply other threads:[~2026-10-11 17:38 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-11 17:38 syzbot ci [this message]
2026-10-11 19:21 ` [moderation/CI] Re: loop: Detect write requests that failed to wait for completion Aleksandr Nogikh
-- strict thread matches above, loose matches on Subject: below --
2026-10-11 16:23 syzbot ci
2026-10-11 15:15 syzbot ci
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=6acbc9a8.6d14cce4.2677ed.012d.GAE@google.com \
--to=syzbot+ciebc1a7ad3d6a80ae@syzkaller.appspotmail.com \
--cc=syzbot@lists.linux.dev \
--cc=syzkaller-upstream-moderation@googlegroups.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox