KMSAN: uninit-value in vfs

Last patch testing requests:
Created	Duration	User	Patch	Repo	Result
2023/03/14 11:36	23m	ivan.orlov0322@gmail.com	patch	https://github.com/google/kmsan.git master	OK log
2023/03/14 10:15	22m	ivan.orlov0322@gmail.com	patch	https://github.com/google/kmsan.git master	OK log
2023/03/14 10:14	0m	ivan.orlov0322@gmail.com	patch	https://github.com/google/kmsan.git master	error
2023/03/13 13:36	14m	ivan.orlov0322@gmail.com	patch	https://github.com/google/kmsan.git master	report log
2023/03/13 13:34	26m	ivan.orlov0322@gmail.com	patch	https://github.com/google/kmsan.git master	report log

Last patch testing requests:

Created

Duration

User

Patch

Repo

Result

2023/03/14 11:36

23m

ivan.orlov0322@gmail.com

patch

https://github.com/google/kmsan.git master

OK log

2023/03/14 10:15

22m

ivan.orlov0322@gmail.com

patch

https://github.com/google/kmsan.git master

OK log

2023/03/14 10:14

ivan.orlov0322@gmail.com

patch

https://github.com/google/kmsan.git master

error

2023/03/13 13:36

14m

ivan.orlov0322@gmail.com

patch

https://github.com/google/kmsan.git master

report log

2023/03/13 13:34

26m

ivan.orlov0322@gmail.com

patch

https://github.com/google/kmsan.git master

report log

=====================================================
BUG: KMSAN: uninit-value in aio_rw_done fs/aio.c:1520 [inline]
BUG: KMSAN: uninit-value in aio_write+0x899/0x950 fs/aio.c:1600
 aio_rw_done fs/aio.c:1520 [inline]
 aio_write+0x899/0x950 fs/aio.c:1600
 io_submit_one+0x1d1c/0x3bf0 fs/aio.c:2019
 __do_sys_io_submit fs/aio.c:2078 [inline]
 __se_sys_io_submit+0x293/0x770 fs/aio.c:2048
 __x64_sys_io_submit+0x92/0xd0 fs/aio.c:2048
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Uninit was created at:
 slab_post_alloc_hook mm/slab.h:766 [inline]
 slab_alloc_node mm/slub.c:3452 [inline]
 __kmem_cache_alloc_node+0x71f/0xce0 mm/slub.c:3491
 __do_kmalloc_node mm/slab_common.c:967 [inline]
 __kmalloc+0x11d/0x3b0 mm/slab_common.c:981
 kmalloc_array include/linux/slab.h:636 [inline]
 bcm_tx_setup+0x80e/0x29d0 net/can/bcm.c:930
 bcm_sendmsg+0x3a2/0xce0 net/can/bcm.c:1351
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg net/socket.c:734 [inline]
 sock_write_iter+0x495/0x5e0 net/socket.c:1108
 call_write_iter include/linux/fs.h:2189 [inline]
 aio_write+0x63a/0x950 fs/aio.c:1600
 io_submit_one+0x1d1c/0x3bf0 fs/aio.c:2019
 __do_sys_io_submit fs/aio.c:2078 [inline]
 __se_sys_io_submit+0x293/0x770 fs/aio.c:2048
 __x64_sys_io_submit+0x92/0xd0 fs/aio.c:2048
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

CPU: 1 PID: 5034 Comm: syz-executor350 Not tainted 6.2.0-rc6-syzkaller-80422-geda666ff2276 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
=====================================================

Crashes (3):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets	Title
ci-upstream-kmsan-gce	2023/02/05 03:11	https://github.com/google/kmsan.git master	eda666ff2276	be607b78	.config	strace log	report	syz	C		[disk image] [vmlinux] [kernel image]	KMSAN: uninit-value in aio_write
ci-upstream-kmsan-gce	2023/01/19 05:18	https://github.com/google/kmsan.git master	e919e2b1bc1c	42660d9e	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	KMSAN: uninit-value in vfs_write
ci-upstream-kmsan-gce	2023/02/05 01:18	https://github.com/google/kmsan.git master	eda666ff2276	be607b78	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	KMSAN: uninit-value in aio_write

Crashes (3):