ci starts bisection 2023-11-19 06:02:08.899730308 +0000 UTC m=+476691.874896148
bisecting fixing commit since 7d2f353b2682dcfe5f9bc71e5b61d5b61770d98e
building syzkaller on 03d9c195daed8fca30b642783f35657aa7e32209
ensuring issue is reproducible on original commit 7d2f353b2682dcfe5f9bc71e5b61d5b61770d98e

testing commit 7d2f353b2682dcfe5f9bc71e5b61d5b61770d98e gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 35bcf74e205873bb4a224edb63956537daae0fefc10f954d4ac1b0e9b2b3f0ed
all runs: crashed: WARNING in blk_rq_map_user_iov
representative crash: WARNING in blk_rq_map_user_iov, types: [WARNING]
check whether we can drop unnecessary instrumentation
disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN KASAN LOCKDEP], they are not needed
testing commit 7d2f353b2682dcfe5f9bc71e5b61d5b61770d98e gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 70302d35c7dbcb49e29a67ac840ea5347ea22733f8ec6e0cd4fe7a5c8995466a
all runs: crashed: WARNING in blk_rq_map_user_iov
representative crash: WARNING in blk_rq_map_user_iov, types: [WARNING]
the bug reproduces without the instrumentation
disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
kconfig minimization: base=3917 full=7643 leaves diff=1999
split chunks (needed=false): <1999>
split chunk #0 of len 1999 into 5 parts
testing without sub-chunk 1/5
disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed
testing commit 7d2f353b2682dcfe5f9bc71e5b61d5b61770d98e gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 040db096c18b47bcb10304ff56d579b6bfc2f4bf315e91c1bbf0b70fa968eaa2
all runs: crashed: WARNING in blk_rq_map_user_iov
representative crash: WARNING in blk_rq_map_user_iov, types: [WARNING]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed
testing commit 7d2f353b2682dcfe5f9bc71e5b61d5b61770d98e gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: c8478d8613b5ed65b154e1baa9e175407f5c40afbbf0699a9bee23c414c770a0
all runs: crashed: WARNING in blk_rq_map_user_iov
representative crash: WARNING in blk_rq_map_user_iov, types: [WARNING]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed
testing commit 7d2f353b2682dcfe5f9bc71e5b61d5b61770d98e gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 270d98e53a3e893301a725be5c354ca88e177aae3e6246dcf319d7edee64f67f
all runs: crashed: WARNING in blk_rq_map_user_iov
representative crash: WARNING in blk_rq_map_user_iov, types: [WARNING]
the chunk can be dropped
testing without sub-chunk 4/5
disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed
testing commit 7d2f353b2682dcfe5f9bc71e5b61d5b61770d98e gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: e15a224cf2a1c2fe0dd059685459cc274803e0f580af62719090ad2219790154
all runs: crashed: WARNING in blk_rq_map_user_iov
representative crash: WARNING in blk_rq_map_user_iov, types: [WARNING]
the chunk can be dropped
testing without sub-chunk 5/5
disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN KASAN], they are not needed
testing commit 7d2f353b2682dcfe5f9bc71e5b61d5b61770d98e gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 91b0cbe11f38ae339bb4eb60d6bedb826af5e1cec15f96d06a2664bb2d27e644
all runs: crashed: WARNING in blk_rq_map_user_iov
representative crash: WARNING in blk_rq_map_user_iov, types: [WARNING]
the chunk can be dropped
disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed
testing current HEAD 037266a5f7239ead1530266f7d7af153d2a867fa
testing commit 037266a5f7239ead1530266f7d7af153d2a867fa gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 2c08eb43292aae4fd8286ef13bf3ab57f4ba38ab7577561ca446214b497c26b9
all runs: crashed: WARNING in blk_rq_map_user_iov
representative crash: WARNING in blk_rq_map_user_iov, types: [WARNING]
crash still not fixed/happens on the oldest tested release
revisions tested: 8, total time: 4h42m22.538706517s (build: 4h11m14.889154334s, test: 24m23.222013572s)
crash still not fixed or there were kernel test errors
commit msg: Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
crash: WARNING in blk_rq_map_user_iov
------------[ cut here ]------------
WARNING: CPU: 1 PID: 1849 at lib/iov_iter.c:274 _copy_from_iter+0xeb/0x4f0 lib/iov_iter.c:274
Modules linked in:
CPU: 1 PID: 1849 Comm: syz-executor.0 Not tainted 6.7.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0010:_copy_from_iter+0xeb/0x4f0 lib/iov_iter.c:274
Code: 01 f0 0f 92 c2 48 85 c0 78 aa 48 85 d2 75 a5 0f 01 cb 48 8b 3c 24 48 89 d9 e8 f1 ea 5c 00 0f 01 ca 49 89 df 49 29 cf eb 91 90 <0f> 0b 90 45 31 ff eb 9d 48 8b 44 24 50 65 48 2b 04 25 28 00 00 00
RSP: 0018:ffffc90000f5f7d8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffffea00043ba200 RCX: ffffc90000f5f801
RDX: ffffc90000f5f8d8 RSI: 0000000000001000 RDI: ffff88810ee88000
RBP: 0000000000000000 R08: 0000000000001000 R09: 0000000000000200
R10: 0000000000000000 R11: ffff88810339c800 R12: 0000000000000000
R13: ffff888000000000 R14: 0000160000000000 R15: 0000000000001000
FS:  00007fb973f1a6c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020670000 CR3: 000000010be5f000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 copy_page_from_iter lib/iov_iter.c:441 [inline]
 copy_page_from_iter+0x7d/0xc0 lib/iov_iter.c:430
 bio_copy_from_iter block/blk-map.c:56 [inline]
 bio_copy_user_iov block/blk-map.c:211 [inline]
 blk_rq_map_user_iov+0x4c8/0x7b0 block/blk-map.c:661
 blk_rq_map_user_io.part.0+0x129/0x160 block/blk-map.c:719
 sg_start_req drivers/scsi/sg.c:1817 [inline]
 sg_common_write.constprop.0+0x40d/0x580 drivers/scsi/sg.c:803
 sg_new_write.isra.0+0x163/0x270 drivers/scsi/sg.c:770
 sg_write+0x368/0x3c0 drivers/scsi/sg.c:632
 do_loop_readv_writev fs/read_write.c:758 [inline]
 do_loop_readv_writev fs/read_write.c:743 [inline]
 do_iter_write+0x160/0x1d0 fs/read_write.c:862
 vfs_writev+0x10b/0x240 fs/read_write.c:933
 do_writev+0x7f/0x160 fs/read_write.c:976
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x40/0xe0 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fb974397ae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb973f1a0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 00007fb9744b6f80 RCX: 00007fb974397ae9
RDX: 0000000000000002 RSI: 0000000020000040 RDI: 0000000000000003
RBP: 00007fb9743e347a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000006 R14: 00007fb9744b6f80 R15: 00007ffcd288e928
 </TASK>