From: syzbot <syzbot+2a52b6c31dbefb1e9d9f@syzkaller.appspotmail.com>
To: amit.kachhap@arm.com, broonie@kernel.org,
catalin.marinas@arm.com, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, mark.rutland@arm.com,
mbenes@suse.cz, syzkaller-bugs@googlegroups.com,
will@kernel.org
Subject: KASAN: invalid-access Read in kmem_cache_destroy
Date: Wed, 27 Jan 2021 08:58:18 -0800 [thread overview]
Message-ID: <0000000000008d396205b9e4adee@google.com> (raw)
Hello,
syzbot found the following issue on:
HEAD commit: 2ab38c17 mailmap: remove the "repo-abbrev" comment
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=12eb4ad8d00000
kernel config: https://syzkaller.appspot.com/x/.config?x=ad43be24faf1194c
dashboard link: https://syzkaller.appspot.com/bug?extid=2a52b6c31dbefb1e9d9f
userspace arch: arm64
Unfortunately, I don't have any reproducer for this issue yet.
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+2a52b6c31dbefb1e9d9f@syzkaller.appspotmail.com
loop0: detected capacity change from 131072 to 0
F2FS-fs (loop0): Found nat_bits in checkpoint
==================================================================
BUG: KASAN: invalid-access in kmem_cache_destroy+0x34/0x174 mm/slab_common.c:492
Read at addr fbff00000cd1ef40 by task syz-executor.0/8859
Pointer tag: [fb], memory tag: [fe]
CPU: 0 PID: 8859 Comm: syz-executor.0 Not tainted 5.11.0-rc5-syzkaller-00037-g2ab38c17aac1 #0
Hardware name: linux,dummy-virt (DT)
Call trace:
dump_backtrace+0x0/0x1b0 arch/arm64/kernel/stacktrace.c:117
show_stack+0x1c/0x70 arch/arm64/kernel/stacktrace.c:196
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0xd0/0x12c lib/dump_stack.c:120
print_address_description+0x70/0x29c mm/kasan/report.c:230
__kasan_report mm/kasan/report.c:396 [inline]
kasan_report+0x104/0x200 mm/kasan/report.c:413
report_tag_fault arch/arm64/mm/fault.c:311 [inline]
do_tag_recovery arch/arm64/mm/fault.c:325 [inline]
__do_kernel_fault+0x17c/0x1c0 arch/arm64/mm/fault.c:369
do_bad_area arch/arm64/mm/fault.c:462 [inline]
do_tag_check_fault+0x78/0x8c arch/arm64/mm/fault.c:717
do_mem_abort+0x44/0xbc arch/arm64/mm/fault.c:793
el1_abort+0x40/0x6c arch/arm64/kernel/entry-common.c:118
el1_sync_handler+0xb0/0xcc arch/arm64/kernel/entry-common.c:209
el1_sync+0x70/0x100 arch/arm64/kernel/entry.S:656
kmem_cache_destroy+0x34/0x174 mm/slab_common.c:492
f2fs_recover_fsync_data+0x60c/0x1cc0 fs/f2fs/recovery.c:869
f2fs_fill_super+0x174c/0x1e8c fs/f2fs/super.c:3804
mount_bdev+0x1c4/0x1f0 fs/super.c:1366
f2fs_mount+0x1c/0x30 fs/f2fs/super.c:3962
legacy_get_tree+0x34/0x64 fs/fs_context.c:592
vfs_get_tree+0x2c/0xf0 fs/super.c:1496
do_new_mount fs/namespace.c:2881 [inline]
path_mount+0x3e8/0xaf0 fs/namespace.c:3211
do_mount fs/namespace.c:3224 [inline]
__do_sys_mount fs/namespace.c:3432 [inline]
__se_sys_mount fs/namespace.c:3409 [inline]
__arm64_sys_mount+0x1a8/0x2fc fs/namespace.c:3409
__invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
invoke_syscall arch/arm64/kernel/syscall.c:49 [inline]
el0_svc_common.constprop.0+0x74/0x190 arch/arm64/kernel/syscall.c:159
do_el0_svc+0x78/0x90 arch/arm64/kernel/syscall.c:198
el0_svc+0x14/0x20 arch/arm64/kernel/entry-common.c:365
el0_sync_handler+0x1a8/0x1b0 arch/arm64/kernel/entry-common.c:381
el0_sync+0x190/0x1c0 arch/arm64/kernel/entry.S:699
Allocated by task 8858:
stack_trace_save+0x50/0x80 kernel/stacktrace.c:121
kasan_save_stack+0x2c/0x60 mm/kasan/common.c:38
kasan_set_track mm/kasan/common.c:46 [inline]
set_alloc_info mm/kasan/common.c:401 [inline]
____kasan_kmalloc+0xe8/0x160 mm/kasan/common.c:429
__kasan_slab_alloc+0x20/0x30 mm/kasan/common.c:437
kasan_slab_alloc include/linux/kasan.h:209 [inline]
slab_post_alloc_hook mm/slab.h:512 [inline]
slab_alloc_node mm/slub.c:2892 [inline]
slab_alloc mm/slub.c:2900 [inline]
kmem_cache_alloc+0x1b0/0x310 mm/slub.c:2905
kmem_cache_zalloc include/linux/slab.h:672 [inline]
create_cache mm/slab_common.c:246 [inline]
kmem_cache_create_usercopy+0x148/0x2ac mm/slab_common.c:352
kmem_cache_create+0x20/0x30 mm/slab_common.c:410
f2fs_kmem_cache_create fs/f2fs/f2fs.h:2411 [inline]
f2fs_recover_fsync_data+0x7c/0x1cc0 fs/f2fs/recovery.c:790
f2fs_fill_super+0x174c/0x1e8c fs/f2fs/super.c:3804
mount_bdev+0x1c4/0x1f0 fs/super.c:1366
f2fs_mount+0x1c/0x30 fs/f2fs/super.c:3962
legacy_get_tree+0x34/0x64 fs/fs_context.c:592
vfs_get_tree+0x2c/0xf0 fs/super.c:1496
do_new_mount fs/namespace.c:2881 [inline]
path_mount+0x3e8/0xaf0 fs/namespace.c:3211
do_mount fs/namespace.c:3224 [inline]
__do_sys_mount fs/namespace.c:3432 [inline]
__se_sys_mount fs/namespace.c:3409 [inline]
__arm64_sys_mount+0x1a8/0x2fc fs/namespace.c:3409
__invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
invoke_syscall arch/arm64/kernel/syscall.c:49 [inline]
el0_svc_common.constprop.0+0x74/0x190 arch/arm64/kernel/syscall.c:159
do_el0_svc+0x78/0x90 arch/arm64/kernel/syscall.c:198
el0_svc+0x14/0x20 arch/arm64/kernel/entry-common.c:365
el0_sync_handler+0x1a8/0x1b0 arch/arm64/kernel/entry-common.c:381
el0_sync+0x190/0x1c0 arch/arm64/kernel/entry.S:699
Freed by task 8858:
stack_trace_save+0x50/0x80 kernel/stacktrace.c:121
kasan_save_stack+0x2c/0x60 mm/kasan/common.c:38
kasan_set_track+0x2c/0x40 mm/kasan/common.c:46
kasan_set_free_info+0x24/0x30 mm/kasan/hw_tags.c:178
____kasan_slab_free.constprop.0+0x184/0x1c0 mm/kasan/common.c:362
__kasan_slab_free+0x14/0x20 mm/kasan/common.c:369
kasan_slab_free include/linux/kasan.h:192 [inline]
slab_free_hook mm/slub.c:1547 [inline]
slab_free_freelist_hook+0x9c/0x190 mm/slub.c:1580
slab_free mm/slub.c:3143 [inline]
kmem_cache_free+0xa0/0x460 mm/slub.c:3159
slab_kmem_cache_release+0x34/0x4c mm/slab_common.c:479
kmem_cache_release+0x18/0x24 mm/slub.c:5535
kobject_cleanup lib/kobject.c:705 [inline]
kobject_release lib/kobject.c:736 [inline]
kref_put include/linux/kref.h:65 [inline]
kobject_put+0x74/0x11c lib/kobject.c:753
sysfs_slab_release+0x2c/0x40 mm/slub.c:5659
shutdown_cache mm/slab_common.c:466 [inline]
kmem_cache_destroy+0x134/0x174 mm/slab_common.c:498
f2fs_recover_fsync_data+0x60c/0x1cc0 fs/f2fs/recovery.c:869
f2fs_fill_super+0x174c/0x1e8c fs/f2fs/super.c:3804
mount_bdev+0x1c4/0x1f0 fs/super.c:1366
f2fs_mount+0x1c/0x30 fs/f2fs/super.c:3962
legacy_get_tree+0x34/0x64 fs/fs_context.c:592
vfs_get_tree+0x2c/0xf0 fs/super.c:1496
do_new_mount fs/namespace.c:2881 [inline]
path_mount+0x3e8/0xaf0 fs/namespace.c:3211
do_mount fs/namespace.c:3224 [inline]
__do_sys_mount fs/namespace.c:3432 [inline]
__se_sys_mount fs/namespace.c:3409 [inline]
__arm64_sys_mount+0x1a8/0x2fc fs/namespace.c:3409
__invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
invoke_syscall arch/arm64/kernel/syscall.c:49 [inline]
el0_svc_common.constprop.0+0x74/0x190 arch/arm64/kernel/syscall.c:159
do_el0_svc+0x78/0x90 arch/arm64/kernel/syscall.c:198
el0_svc+0x14/0x20 arch/arm64/kernel/entry-common.c:365
el0_sync_handler+0x1a8/0x1b0 arch/arm64/kernel/entry-common.c:381
el0_sync+0x190/0x1c0 arch/arm64/kernel/entry.S:699
The buggy address belongs to the object at ffff00000cd1ef00
which belongs to the cache kmem_cache of size 216
The buggy address is located 64 bytes inside of
216-byte region [ffff00000cd1ef00, ffff00000cd1efd8)
The buggy address belongs to the page:
page:0000000028de1119 refcount:1 mapcount:0 mapping:0000000000000000 index:0xf0ff00000cd1ec00 pfn:0x4cd1e
flags: 0x1ffffc000000200(slab)
raw: 01ffffc000000200 dead000000000100 dead000000000122 f1ff000004001000
raw: f0ff00000cd1ec00 000000008010000a 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff00000cd1ed00: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
ffff00000cd1ee00: f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 fe fe
>ffff00000cd1ef00: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
^
ffff00000cd1f000: f4 f4 f4 f4 fe fe fe fe f9 f9 f9 f9 fe fe fe fe
ffff00000cd1f100: f9 f9 f9 f9 fe fe fe fe f1 f1 f1 f1 fe fe fe fe
==================================================================
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
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WARNING: multiple messages have this Message-ID (diff)
From: syzbot <syzbot+2a52b6c31dbefb1e9d9f@syzkaller.appspotmail.com>
To: amit.kachhap@arm.com, broonie@kernel.org,
catalin.marinas@arm.com, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, mark.rutland@arm.com,
mbenes@suse.cz, syzkaller-bugs@googlegroups.com, will@kernel.org
Subject: KASAN: invalid-access Read in kmem_cache_destroy
Date: Wed, 27 Jan 2021 08:58:18 -0800 [thread overview]
Message-ID: <0000000000008d396205b9e4adee@google.com> (raw)
Hello,
syzbot found the following issue on:
HEAD commit: 2ab38c17 mailmap: remove the "repo-abbrev" comment
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=12eb4ad8d00000
kernel config: https://syzkaller.appspot.com/x/.config?x=ad43be24faf1194c
dashboard link: https://syzkaller.appspot.com/bug?extid=2a52b6c31dbefb1e9d9f
userspace arch: arm64
Unfortunately, I don't have any reproducer for this issue yet.
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+2a52b6c31dbefb1e9d9f@syzkaller.appspotmail.com
loop0: detected capacity change from 131072 to 0
F2FS-fs (loop0): Found nat_bits in checkpoint
==================================================================
BUG: KASAN: invalid-access in kmem_cache_destroy+0x34/0x174 mm/slab_common.c:492
Read at addr fbff00000cd1ef40 by task syz-executor.0/8859
Pointer tag: [fb], memory tag: [fe]
CPU: 0 PID: 8859 Comm: syz-executor.0 Not tainted 5.11.0-rc5-syzkaller-00037-g2ab38c17aac1 #0
Hardware name: linux,dummy-virt (DT)
Call trace:
dump_backtrace+0x0/0x1b0 arch/arm64/kernel/stacktrace.c:117
show_stack+0x1c/0x70 arch/arm64/kernel/stacktrace.c:196
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0xd0/0x12c lib/dump_stack.c:120
print_address_description+0x70/0x29c mm/kasan/report.c:230
__kasan_report mm/kasan/report.c:396 [inline]
kasan_report+0x104/0x200 mm/kasan/report.c:413
report_tag_fault arch/arm64/mm/fault.c:311 [inline]
do_tag_recovery arch/arm64/mm/fault.c:325 [inline]
__do_kernel_fault+0x17c/0x1c0 arch/arm64/mm/fault.c:369
do_bad_area arch/arm64/mm/fault.c:462 [inline]
do_tag_check_fault+0x78/0x8c arch/arm64/mm/fault.c:717
do_mem_abort+0x44/0xbc arch/arm64/mm/fault.c:793
el1_abort+0x40/0x6c arch/arm64/kernel/entry-common.c:118
el1_sync_handler+0xb0/0xcc arch/arm64/kernel/entry-common.c:209
el1_sync+0x70/0x100 arch/arm64/kernel/entry.S:656
kmem_cache_destroy+0x34/0x174 mm/slab_common.c:492
f2fs_recover_fsync_data+0x60c/0x1cc0 fs/f2fs/recovery.c:869
f2fs_fill_super+0x174c/0x1e8c fs/f2fs/super.c:3804
mount_bdev+0x1c4/0x1f0 fs/super.c:1366
f2fs_mount+0x1c/0x30 fs/f2fs/super.c:3962
legacy_get_tree+0x34/0x64 fs/fs_context.c:592
vfs_get_tree+0x2c/0xf0 fs/super.c:1496
do_new_mount fs/namespace.c:2881 [inline]
path_mount+0x3e8/0xaf0 fs/namespace.c:3211
do_mount fs/namespace.c:3224 [inline]
__do_sys_mount fs/namespace.c:3432 [inline]
__se_sys_mount fs/namespace.c:3409 [inline]
__arm64_sys_mount+0x1a8/0x2fc fs/namespace.c:3409
__invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
invoke_syscall arch/arm64/kernel/syscall.c:49 [inline]
el0_svc_common.constprop.0+0x74/0x190 arch/arm64/kernel/syscall.c:159
do_el0_svc+0x78/0x90 arch/arm64/kernel/syscall.c:198
el0_svc+0x14/0x20 arch/arm64/kernel/entry-common.c:365
el0_sync_handler+0x1a8/0x1b0 arch/arm64/kernel/entry-common.c:381
el0_sync+0x190/0x1c0 arch/arm64/kernel/entry.S:699
Allocated by task 8858:
stack_trace_save+0x50/0x80 kernel/stacktrace.c:121
kasan_save_stack+0x2c/0x60 mm/kasan/common.c:38
kasan_set_track mm/kasan/common.c:46 [inline]
set_alloc_info mm/kasan/common.c:401 [inline]
____kasan_kmalloc+0xe8/0x160 mm/kasan/common.c:429
__kasan_slab_alloc+0x20/0x30 mm/kasan/common.c:437
kasan_slab_alloc include/linux/kasan.h:209 [inline]
slab_post_alloc_hook mm/slab.h:512 [inline]
slab_alloc_node mm/slub.c:2892 [inline]
slab_alloc mm/slub.c:2900 [inline]
kmem_cache_alloc+0x1b0/0x310 mm/slub.c:2905
kmem_cache_zalloc include/linux/slab.h:672 [inline]
create_cache mm/slab_common.c:246 [inline]
kmem_cache_create_usercopy+0x148/0x2ac mm/slab_common.c:352
kmem_cache_create+0x20/0x30 mm/slab_common.c:410
f2fs_kmem_cache_create fs/f2fs/f2fs.h:2411 [inline]
f2fs_recover_fsync_data+0x7c/0x1cc0 fs/f2fs/recovery.c:790
f2fs_fill_super+0x174c/0x1e8c fs/f2fs/super.c:3804
mount_bdev+0x1c4/0x1f0 fs/super.c:1366
f2fs_mount+0x1c/0x30 fs/f2fs/super.c:3962
legacy_get_tree+0x34/0x64 fs/fs_context.c:592
vfs_get_tree+0x2c/0xf0 fs/super.c:1496
do_new_mount fs/namespace.c:2881 [inline]
path_mount+0x3e8/0xaf0 fs/namespace.c:3211
do_mount fs/namespace.c:3224 [inline]
__do_sys_mount fs/namespace.c:3432 [inline]
__se_sys_mount fs/namespace.c:3409 [inline]
__arm64_sys_mount+0x1a8/0x2fc fs/namespace.c:3409
__invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
invoke_syscall arch/arm64/kernel/syscall.c:49 [inline]
el0_svc_common.constprop.0+0x74/0x190 arch/arm64/kernel/syscall.c:159
do_el0_svc+0x78/0x90 arch/arm64/kernel/syscall.c:198
el0_svc+0x14/0x20 arch/arm64/kernel/entry-common.c:365
el0_sync_handler+0x1a8/0x1b0 arch/arm64/kernel/entry-common.c:381
el0_sync+0x190/0x1c0 arch/arm64/kernel/entry.S:699
Freed by task 8858:
stack_trace_save+0x50/0x80 kernel/stacktrace.c:121
kasan_save_stack+0x2c/0x60 mm/kasan/common.c:38
kasan_set_track+0x2c/0x40 mm/kasan/common.c:46
kasan_set_free_info+0x24/0x30 mm/kasan/hw_tags.c:178
____kasan_slab_free.constprop.0+0x184/0x1c0 mm/kasan/common.c:362
__kasan_slab_free+0x14/0x20 mm/kasan/common.c:369
kasan_slab_free include/linux/kasan.h:192 [inline]
slab_free_hook mm/slub.c:1547 [inline]
slab_free_freelist_hook+0x9c/0x190 mm/slub.c:1580
slab_free mm/slub.c:3143 [inline]
kmem_cache_free+0xa0/0x460 mm/slub.c:3159
slab_kmem_cache_release+0x34/0x4c mm/slab_common.c:479
kmem_cache_release+0x18/0x24 mm/slub.c:5535
kobject_cleanup lib/kobject.c:705 [inline]
kobject_release lib/kobject.c:736 [inline]
kref_put include/linux/kref.h:65 [inline]
kobject_put+0x74/0x11c lib/kobject.c:753
sysfs_slab_release+0x2c/0x40 mm/slub.c:5659
shutdown_cache mm/slab_common.c:466 [inline]
kmem_cache_destroy+0x134/0x174 mm/slab_common.c:498
f2fs_recover_fsync_data+0x60c/0x1cc0 fs/f2fs/recovery.c:869
f2fs_fill_super+0x174c/0x1e8c fs/f2fs/super.c:3804
mount_bdev+0x1c4/0x1f0 fs/super.c:1366
f2fs_mount+0x1c/0x30 fs/f2fs/super.c:3962
legacy_get_tree+0x34/0x64 fs/fs_context.c:592
vfs_get_tree+0x2c/0xf0 fs/super.c:1496
do_new_mount fs/namespace.c:2881 [inline]
path_mount+0x3e8/0xaf0 fs/namespace.c:3211
do_mount fs/namespace.c:3224 [inline]
__do_sys_mount fs/namespace.c:3432 [inline]
__se_sys_mount fs/namespace.c:3409 [inline]
__arm64_sys_mount+0x1a8/0x2fc fs/namespace.c:3409
__invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
invoke_syscall arch/arm64/kernel/syscall.c:49 [inline]
el0_svc_common.constprop.0+0x74/0x190 arch/arm64/kernel/syscall.c:159
do_el0_svc+0x78/0x90 arch/arm64/kernel/syscall.c:198
el0_svc+0x14/0x20 arch/arm64/kernel/entry-common.c:365
el0_sync_handler+0x1a8/0x1b0 arch/arm64/kernel/entry-common.c:381
el0_sync+0x190/0x1c0 arch/arm64/kernel/entry.S:699
The buggy address belongs to the object at ffff00000cd1ef00
which belongs to the cache kmem_cache of size 216
The buggy address is located 64 bytes inside of
216-byte region [ffff00000cd1ef00, ffff00000cd1efd8)
The buggy address belongs to the page:
page:0000000028de1119 refcount:1 mapcount:0 mapping:0000000000000000 index:0xf0ff00000cd1ec00 pfn:0x4cd1e
flags: 0x1ffffc000000200(slab)
raw: 01ffffc000000200 dead000000000100 dead000000000122 f1ff000004001000
raw: f0ff00000cd1ec00 000000008010000a 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff00000cd1ed00: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
ffff00000cd1ee00: f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 fe fe
>ffff00000cd1ef00: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
^
ffff00000cd1f000: f4 f4 f4 f4 fe fe fe fe f9 f9 f9 f9 fe fe fe fe
ffff00000cd1f100: f9 f9 f9 f9 fe fe fe fe f1 f1 f1 f1 fe fe fe fe
==================================================================
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
next reply other threads:[~2021-01-27 16:59 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-27 16:58 syzbot [this message]
2021-01-27 16:58 ` KASAN: invalid-access Read in kmem_cache_destroy syzbot
2021-01-27 17:14 ` Dmitry Vyukov
2021-01-27 17:14 ` Dmitry Vyukov
2021-01-27 17:43 ` Mark Brown
2021-01-27 17:43 ` Mark Brown
2021-01-27 19:50 ` Andrey Konovalov
2021-01-27 19:50 ` Andrey Konovalov
2021-01-28 12:34 ` Vincenzo Frascino
2021-01-28 12:34 ` Vincenzo Frascino
2021-01-28 12:43 ` Dmitry Vyukov
2021-01-28 12:43 ` Dmitry Vyukov
2021-01-28 13:29 ` Vincenzo Frascino
2021-01-28 13:29 ` Vincenzo Frascino
2021-05-03 8:30 ` Dmitry Vyukov
2021-05-03 8:30 ` Dmitry Vyukov
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