syzbot


WARNING in netfs_retry_reads

Status: closed as invalid on 2024/11/29 18:51
Subsystems: netfs
[Documentation on labels]
Reported-by: syzbot+fe139f9822abd9855970@syzkaller.appspotmail.com
First crash: 31d, last: 27d
Cause bisection: introduced by (bisect log) :
commit fad610b987132868e3410c530871086552ce6155
Author: Ilpo JΓ€rvinen <ilpo.jarvinen@linux.intel.com>
Date: Fri Oct 18 14:47:47 2024 +0000

  Documentation PCI: Reformat RMW ops documentation

Crash: WARNING in p9_client_create (log)
Repro: C syz .config
  
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [netfs?] WARNING in netfs_retry_reads 4 (5) 2024/11/29 23:23
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in netfs_retry_reads (2) netfs C done 48 8h59m 23d 0/28 upstream: reported C repro on 2024/12/02 17:23

Sample crash report:
------------[ cut here ]------------
do not call blocking ops when !TASK_RUNNING; state=2 set at [<ffffffff8177bd66>] prepare_to_wait+0x186/0x210 kernel/sched/wait.c:237
WARNING: CPU: 0 PID: 5848 at kernel/sched/core.c:8685 __might_sleep+0xb9/0xe0 kernel/sched/core.c:8681
Modules linked in:
CPU: 0 UID: 0 PID: 5848 Comm: syz-executor189 Not tainted 6.12.0-next-20241125-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__might_sleep+0xb9/0xe0 kernel/sched/core.c:8681
Code: 93 0e 01 90 42 80 3c 23 00 74 08 48 89 ef e8 fe 38 9b 00 48 8b 4d 00 48 c7 c7 80 2d 0a 8c 44 89 ee 48 89 ca e8 b8 e6 f0 ff 90 <0f> 0b 90 90 eb b5 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 70 ff ff ff
RSP: 0018:ffffc90003e465a8 EFLAGS: 00010246
RAX: ff5208356e89db00 RBX: 1ffff1100fff22ed RCX: ffff88807ff90000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff88807ff91768 R08: ffffffff81601b32 R09: fffffbfff1cfa218
R10: dffffc0000000000 R11: fffffbfff1cfa218 R12: dffffc0000000000
R13: 0000000000000002 R14: 000000000000004a R15: ffffffff8c1ca120
FS:  0000555573787380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff2460a1104 CR3: 00000000745c2000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 wait_on_bit include/linux/wait_bit.h:74 [inline]
 netfs_retry_reads+0xde/0x1e00 fs/netfs/read_retry.c:263
 netfs_collect_read_results fs/netfs/read_collect.c:333 [inline]
 netfs_read_collection+0x33a0/0x4070 fs/netfs/read_collect.c:414
 netfs_wait_for_read+0x2ba/0x4e0 fs/netfs/read_collect.c:629
 netfs_unbuffered_read fs/netfs/direct_read.c:156 [inline]
 netfs_unbuffered_read_iter_locked+0x120e/0x1560 fs/netfs/direct_read.c:231
 netfs_unbuffered_read_iter+0xbf/0xe0 fs/netfs/direct_read.c:266
 __kernel_read+0x513/0x9d0 fs/read_write.c:523
 integrity_kernel_read+0xb0/0x100 security/integrity/iint.c:28
 ima_calc_file_hash_tfm security/integrity/ima/ima_crypto.c:480 [inline]
 ima_calc_file_shash security/integrity/ima/ima_crypto.c:511 [inline]
 ima_calc_file_hash+0xae6/0x1b30 security/integrity/ima/ima_crypto.c:568
 ima_collect_measurement+0x520/0xb10 security/integrity/ima/ima_api.c:293
 process_measurement+0x1351/0x1fb0 security/integrity/ima/ima_main.c:372
 ima_file_check+0xd9/0x120 security/integrity/ima/ima_main.c:572
 security_file_post_open+0xb9/0x280 security/security.c:3121
 do_open fs/namei.c:3830 [inline]
 path_openat+0x2ccd/0x3590 fs/namei.c:3987
 do_filp_open+0x27f/0x4e0 fs/namei.c:4014
 do_sys_openat2+0x13e/0x1d0 fs/open.c:1402
 do_sys_open fs/open.c:1417 [inline]
 __do_sys_open fs/open.c:1425 [inline]
 __se_sys_open fs/open.c:1421 [inline]
 __x64_sys_open+0x225/0x270 fs/open.c:1421
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff24603d929
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 1a 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe9079c548 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007ff24603d929
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000340
RBP: 00007ff24608a257 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000023fb0
R13: 00007ff2460bab40 R14: 00007ff2460bcd00 R15: 00007ffe9079c570
 </TASK>

Crashes (16):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/11/25 11:27 linux-next 85a2dd7d7c81 68da6d95 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in netfs_retry_reads
2024/11/25 10:34 linux-next 85a2dd7d7c81 68da6d95 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in netfs_retry_reads
2024/11/29 08:31 linux-next f486c8aa16b8 5df23865 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in netfs_retry_reads
2024/11/28 10:40 linux-next f486c8aa16b8 5df23865 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in netfs_retry_reads
2024/11/28 10:40 linux-next f486c8aa16b8 5df23865 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in netfs_retry_reads
2024/11/28 00:48 linux-next 6f3d2b5299b0 5df23865 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in netfs_retry_reads
2024/11/28 00:48 linux-next 6f3d2b5299b0 5df23865 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in netfs_retry_reads
2024/11/27 08:34 linux-next 6f3d2b5299b0 52b38cc1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in netfs_retry_reads
2024/11/27 08:33 linux-next 6f3d2b5299b0 52b38cc1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in netfs_retry_reads
2024/11/27 08:33 linux-next 6f3d2b5299b0 52b38cc1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in netfs_retry_reads
2024/11/27 08:33 linux-next 6f3d2b5299b0 52b38cc1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in netfs_retry_reads
2024/11/27 08:30 linux-next 6f3d2b5299b0 52b38cc1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in netfs_retry_reads
2024/11/27 08:24 linux-next 6f3d2b5299b0 52b38cc1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in netfs_retry_reads
2024/11/26 13:20 linux-next ed9a4ad6e5bd 11dbc254 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in netfs_retry_reads
2024/11/26 13:20 linux-next ed9a4ad6e5bd 11dbc254 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in netfs_retry_reads
2024/11/25 07:19 linux-next 85a2dd7d7c81 68da6d95 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in netfs_retry_reads
* Struck through repros no longer work on HEAD.