[v6.1] KASAN: slab-out-of-bounds Read in ext4_enable_quotas (2)
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syzbot
Aug 31, 2023, 3:15:13 AM8/31/23
to syzkaller...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: a2943d2d9a00 Linux 6.1.50
git tree: linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=178191dfa80000
kernel config: https://syzkaller.appspot.com/x/.config?x=bbd1612e7e5e605c
dashboard link: https://syzkaller.appspot.com/bug?extid=79eba683b27bba09b7c5
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/533ea1c74b65/disk-a2943d2d.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/9f5e91b6c37c/vmlinux-a2943d2d.xz
kernel image: https://storage.googleapis.com/syzbot-assets/bfd7a380f68a/bzImage-a2943d2d.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+79eba6...@syzkaller.appspotmail.com
loop2: detected capacity change from 0 to 512
==================================================================
BUG: KASAN: slab-out-of-bounds in lockdep_set_quota_inode fs/ext4/super.c:6834 [inline]
BUG: KASAN: slab-out-of-bounds in ext4_quota_enable fs/ext4/super.c:6965 [inline]
BUG: KASAN: slab-out-of-bounds in ext4_enable_quotas+0x5d3/0xd40 fs/ext4/super.c:6992
Read of size 8 at addr ffff8880850208c0 by task syz-executor.2/2277
CPU: 0 PID: 2277 Comm: syz-executor.2 Not tainted 6.1.50-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
print_address_description mm/kasan/report.c:284 [inline]
print_report+0x15f/0x4f0 mm/kasan/report.c:395
kasan_report+0x136/0x160 mm/kasan/report.c:495
lockdep_set_quota_inode fs/ext4/super.c:6834 [inline]
ext4_quota_enable fs/ext4/super.c:6965 [inline]
ext4_enable_quotas+0x5d3/0xd40 fs/ext4/super.c:6992
__ext4_fill_super fs/ext4/super.c:5518 [inline]
ext4_fill_super+0x81c4/0x8b30 fs/ext4/super.c:5664
get_tree_bdev+0x3fe/0x620 fs/super.c:1355
vfs_get_tree+0x88/0x270 fs/super.c:1562
do_new_mount+0x28b/0xae0 fs/namespace.c:3040
do_mount fs/namespace.c:3383 [inline]
__do_sys_mount fs/namespace.c:3591 [inline]
__se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3568
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
RIP: 0033:0x7f586847e1ea
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 09 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 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:00007f586922eee8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f586922ef80 RCX: 00007f586847e1ea
RDX: 00000000200004c0 RSI: 0000000020000500 RDI: 00007f586922ef40
RBP: 00000000200004c0 R08: 00007f586922ef80 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000500
R13: 00007f586922ef40 R14: 00000000000004a6 R15: 0000000020000240
</TASK>
Allocated by task 31815:
kasan_save_stack mm/kasan/common.c:45 [inline]
kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
__kasan_slab_alloc+0x65/0x70 mm/kasan/common.c:328
kasan_slab_alloc include/linux/kasan.h:201 [inline]
slab_post_alloc_hook+0x50/0x370 mm/slab.h:737
slab_alloc_node mm/slub.c:3398 [inline]
slab_alloc mm/slub.c:3406 [inline]
__kmem_cache_alloc_lru mm/slub.c:3413 [inline]
kmem_cache_alloc_lru+0x10c/0x2d0 mm/slub.c:3429
alloc_inode_sb include/linux/fs.h:3133 [inline]
f2fs_alloc_inode+0x171/0x540 fs/f2fs/super.c:1366
alloc_inode fs/inode.c:259 [inline]
iget_locked+0x1c8/0x830 fs/inode.c:1328
f2fs_iget+0x52/0x4ac0 fs/f2fs/inode.c:497
f2fs_fill_super+0x6037/0x7cb0 fs/f2fs/super.c:4341
mount_bdev+0x2c9/0x3f0 fs/super.c:1432
legacy_get_tree+0xeb/0x180 fs/fs_context.c:611
vfs_get_tree+0x88/0x270 fs/super.c:1562
do_new_mount+0x28b/0xae0 fs/namespace.c:3040
do_mount fs/namespace.c:3383 [inline]
__do_sys_mount fs/namespace.c:3591 [inline]
__se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3568
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
Last potentially related work creation:
kasan_save_stack+0x3b/0x60 mm/kasan/common.c:45
__kasan_record_aux_stack+0xb0/0xc0 mm/kasan/generic.c:486
call_rcu+0x163/0xa10 kernel/rcu/tree.c:2799
f2fs_put_super+0x61c/0xc00 fs/f2fs/super.c:1594
generic_shutdown_super+0x130/0x340 fs/super.c:501
kill_block_super+0x7a/0xe0 fs/super.c:1459
kill_f2fs_super+0x2ff/0x3c0 fs/f2fs/super.c:4612
deactivate_locked_super+0xa0/0x110 fs/super.c:332
cleanup_mnt+0x490/0x520 fs/namespace.c:1186
task_work_run+0x246/0x300 kernel/task_work.c:179
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xd9/0x100 kernel/entry/common.c:171
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:297
do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
Second to last potentially related work creation:
kasan_save_stack+0x3b/0x60 mm/kasan/common.c:45
__kasan_record_aux_stack+0xb0/0xc0 mm/kasan/generic.c:486
call_rcu+0x163/0xa10 kernel/rcu/tree.c:2799
f2fs_put_super+0x65d/0xc00 fs/f2fs/super.c:1597
generic_shutdown_super+0x130/0x340 fs/super.c:501
kill_block_super+0x7a/0xe0 fs/super.c:1459
kill_f2fs_super+0x2ff/0x3c0 fs/f2fs/super.c:4612
deactivate_locked_super+0xa0/0x110 fs/super.c:332
cleanup_mnt+0x490/0x520 fs/namespace.c:1186
task_work_run+0x246/0x300 kernel/task_work.c:179
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xd9/0x100 kernel/entry/common.c:171
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:297
do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
The buggy address belongs to the object at ffff888085020000
which belongs to the cache f2fs_inode_cache of size 2152
The buggy address is located 88 bytes to the right of
2152-byte region [ffff888085020000, ffff888085020868)
The buggy address belongs to the physical page:
page:ffffea0002140800 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff888085022c88 pfn:0x85020
head:ffffea0002140800 order:3 compound_mapcount:0 compound_pincount:0
memcg:ffff8880777c9d01
flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000010200 0000000000000000 dead000000000001 ffff888015be23c0
raw: ffff888085022c88 00000000800e0002 00000001ffffffff ffff8880777c9d01
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Reclaimable, gfp_mask 0x1d2050(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL|__GFP_RECLAIMABLE), pid 27581, tgid 27578 (syz-executor.1), ts 1329203697007, free_ts 1325867801068
set_page_owner include/linux/page_owner.h:31 [inline]
post_alloc_hook+0x18d/0x1b0 mm/page_alloc.c:2533
prep_new_page mm/page_alloc.c:2540 [inline]
get_page_from_freelist+0x32ed/0x3480 mm/page_alloc.c:4292
__alloc_pages+0x28d/0x770 mm/page_alloc.c:5559
alloc_slab_page+0x6a/0x150 mm/slub.c:1794
allocate_slab mm/slub.c:1939 [inline]
new_slab+0x84/0x2d0 mm/slub.c:1992
___slab_alloc+0xa71/0x1080 mm/slub.c:3180
__slab_alloc mm/slub.c:3279 [inline]
slab_alloc_node mm/slub.c:3364 [inline]
slab_alloc mm/slub.c:3406 [inline]
__kmem_cache_alloc_lru mm/slub.c:3413 [inline]
kmem_cache_alloc_lru+0x1a5/0x2d0 mm/slub.c:3429
alloc_inode_sb include/linux/fs.h:3133 [inline]
f2fs_alloc_inode+0x171/0x540 fs/f2fs/super.c:1366
alloc_inode fs/inode.c:259 [inline]
iget_locked+0x1c8/0x830 fs/inode.c:1328
f2fs_iget+0x52/0x4ac0 fs/f2fs/inode.c:497
f2fs_fill_super+0x6037/0x7cb0 fs/f2fs/super.c:4341
mount_bdev+0x2c9/0x3f0 fs/super.c:1432
legacy_get_tree+0xeb/0x180 fs/fs_context.c:611
vfs_get_tree+0x88/0x270 fs/super.c:1562
do_new_mount+0x28b/0xae0 fs/namespace.c:3040
do_mount fs/namespace.c:3383 [inline]
__do_sys_mount fs/namespace.c:3591 [inline]
__se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3568
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1460 [inline]
free_pcp_prepare mm/page_alloc.c:1510 [inline]
free_unref_page_prepare+0xf63/0x1120 mm/page_alloc.c:3388
free_unref_page+0x98/0x570 mm/page_alloc.c:3484
qlist_free_all+0x22/0x60 mm/kasan/quarantine.c:187
kasan_quarantine_reduce+0x162/0x180 mm/kasan/quarantine.c:294
__kasan_slab_alloc+0x1f/0x70 mm/kasan/common.c:305
kasan_slab_alloc include/linux/kasan.h:201 [inline]
slab_post_alloc_hook+0x50/0x370 mm/slab.h:737
slab_alloc_node mm/slub.c:3398 [inline]
kmem_cache_alloc_node+0x136/0x310 mm/slub.c:3443
__alloc_skb+0xdf/0x620 net/core/skbuff.c:497
alloc_skb include/linux/skbuff.h:1268 [inline]
nlmsg_new include/net/netlink.h:970 [inline]
netlink_ack+0x34e/0xe60 net/netlink/af_netlink.c:2475
netlink_rcv_skb+0x24a/0x410 net/netlink/af_netlink.c:2531
genl_rcv+0x24/0x40 net/netlink/genetlink.c:861
netlink_unicast_kernel net/netlink/af_netlink.c:1328 [inline]
netlink_unicast+0x7bf/0x990 net/netlink/af_netlink.c:1354
netlink_sendmsg+0xa26/0xd60 net/netlink/af_netlink.c:1903
sock_sendmsg_nosec net/socket.c:716 [inline]
sock_sendmsg net/socket.c:736 [inline]
__sys_sendto+0x471/0x5f0 net/socket.c:2117
__do_sys_sendto net/socket.c:2129 [inline]
__se_sys_sendto net/socket.c:2125 [inline]
__x64_sys_sendto+0xda/0xf0 net/socket.c:2125
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
Memory state around the buggy address:
ffff888085020780: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffff888085020800: 00 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc
>ffff888085020880: fc fc fc fc fc fc fc fc fc fc fc fc fc 00 00 00
^
ffff888085020900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffff888085020980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================
---
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 syzk...@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
If the bug is already fixed, let syzbot know by replying with:
#syz fix: exact-commit-title
If you want to overwrite bug's subsystems, reply with:
#syz set subsystems: new-subsystem
(See the list of subsystem names on the web dashboard)
If the bug is a duplicate of another bug, reply with:
#syz dup: exact-subject-of-another-report
If you want to undo deduplication, reply with:
#syz undup
syzbot found the following issue on:
HEAD commit: a2943d2d9a00 Linux 6.1.50
git tree: linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=178191dfa80000
kernel config: https://syzkaller.appspot.com/x/.config?x=bbd1612e7e5e605c
dashboard link: https://syzkaller.appspot.com/bug?extid=79eba683b27bba09b7c5
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/533ea1c74b65/disk-a2943d2d.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/9f5e91b6c37c/vmlinux-a2943d2d.xz
kernel image: https://storage.googleapis.com/syzbot-assets/bfd7a380f68a/bzImage-a2943d2d.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+79eba6...@syzkaller.appspotmail.com
loop2: detected capacity change from 0 to 512
==================================================================
BUG: KASAN: slab-out-of-bounds in lockdep_set_quota_inode fs/ext4/super.c:6834 [inline]
BUG: KASAN: slab-out-of-bounds in ext4_quota_enable fs/ext4/super.c:6965 [inline]
BUG: KASAN: slab-out-of-bounds in ext4_enable_quotas+0x5d3/0xd40 fs/ext4/super.c:6992
Read of size 8 at addr ffff8880850208c0 by task syz-executor.2/2277
CPU: 0 PID: 2277 Comm: syz-executor.2 Not tainted 6.1.50-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
print_address_description mm/kasan/report.c:284 [inline]
print_report+0x15f/0x4f0 mm/kasan/report.c:395
kasan_report+0x136/0x160 mm/kasan/report.c:495
lockdep_set_quota_inode fs/ext4/super.c:6834 [inline]
ext4_quota_enable fs/ext4/super.c:6965 [inline]
ext4_enable_quotas+0x5d3/0xd40 fs/ext4/super.c:6992
__ext4_fill_super fs/ext4/super.c:5518 [inline]
ext4_fill_super+0x81c4/0x8b30 fs/ext4/super.c:5664
get_tree_bdev+0x3fe/0x620 fs/super.c:1355
vfs_get_tree+0x88/0x270 fs/super.c:1562
do_new_mount+0x28b/0xae0 fs/namespace.c:3040
do_mount fs/namespace.c:3383 [inline]
__do_sys_mount fs/namespace.c:3591 [inline]
__se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3568
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
RIP: 0033:0x7f586847e1ea
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 09 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 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:00007f586922eee8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f586922ef80 RCX: 00007f586847e1ea
RDX: 00000000200004c0 RSI: 0000000020000500 RDI: 00007f586922ef40
RBP: 00000000200004c0 R08: 00007f586922ef80 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000500
R13: 00007f586922ef40 R14: 00000000000004a6 R15: 0000000020000240
</TASK>
Allocated by task 31815:
kasan_save_stack mm/kasan/common.c:45 [inline]
kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
__kasan_slab_alloc+0x65/0x70 mm/kasan/common.c:328
kasan_slab_alloc include/linux/kasan.h:201 [inline]
slab_post_alloc_hook+0x50/0x370 mm/slab.h:737
slab_alloc_node mm/slub.c:3398 [inline]
slab_alloc mm/slub.c:3406 [inline]
__kmem_cache_alloc_lru mm/slub.c:3413 [inline]
kmem_cache_alloc_lru+0x10c/0x2d0 mm/slub.c:3429
alloc_inode_sb include/linux/fs.h:3133 [inline]
f2fs_alloc_inode+0x171/0x540 fs/f2fs/super.c:1366
alloc_inode fs/inode.c:259 [inline]
iget_locked+0x1c8/0x830 fs/inode.c:1328
f2fs_iget+0x52/0x4ac0 fs/f2fs/inode.c:497
f2fs_fill_super+0x6037/0x7cb0 fs/f2fs/super.c:4341
mount_bdev+0x2c9/0x3f0 fs/super.c:1432
legacy_get_tree+0xeb/0x180 fs/fs_context.c:611
vfs_get_tree+0x88/0x270 fs/super.c:1562
do_new_mount+0x28b/0xae0 fs/namespace.c:3040
do_mount fs/namespace.c:3383 [inline]
__do_sys_mount fs/namespace.c:3591 [inline]
__se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3568
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
Last potentially related work creation:
kasan_save_stack+0x3b/0x60 mm/kasan/common.c:45
__kasan_record_aux_stack+0xb0/0xc0 mm/kasan/generic.c:486
call_rcu+0x163/0xa10 kernel/rcu/tree.c:2799
f2fs_put_super+0x61c/0xc00 fs/f2fs/super.c:1594
generic_shutdown_super+0x130/0x340 fs/super.c:501
kill_block_super+0x7a/0xe0 fs/super.c:1459
kill_f2fs_super+0x2ff/0x3c0 fs/f2fs/super.c:4612
deactivate_locked_super+0xa0/0x110 fs/super.c:332
cleanup_mnt+0x490/0x520 fs/namespace.c:1186
task_work_run+0x246/0x300 kernel/task_work.c:179
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xd9/0x100 kernel/entry/common.c:171
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:297
do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
Second to last potentially related work creation:
kasan_save_stack+0x3b/0x60 mm/kasan/common.c:45
__kasan_record_aux_stack+0xb0/0xc0 mm/kasan/generic.c:486
call_rcu+0x163/0xa10 kernel/rcu/tree.c:2799
f2fs_put_super+0x65d/0xc00 fs/f2fs/super.c:1597
generic_shutdown_super+0x130/0x340 fs/super.c:501
kill_block_super+0x7a/0xe0 fs/super.c:1459
kill_f2fs_super+0x2ff/0x3c0 fs/f2fs/super.c:4612
deactivate_locked_super+0xa0/0x110 fs/super.c:332
cleanup_mnt+0x490/0x520 fs/namespace.c:1186
task_work_run+0x246/0x300 kernel/task_work.c:179
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xd9/0x100 kernel/entry/common.c:171
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:297
do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
The buggy address belongs to the object at ffff888085020000
which belongs to the cache f2fs_inode_cache of size 2152
The buggy address is located 88 bytes to the right of
2152-byte region [ffff888085020000, ffff888085020868)
The buggy address belongs to the physical page:
page:ffffea0002140800 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff888085022c88 pfn:0x85020
head:ffffea0002140800 order:3 compound_mapcount:0 compound_pincount:0
memcg:ffff8880777c9d01
flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000010200 0000000000000000 dead000000000001 ffff888015be23c0
raw: ffff888085022c88 00000000800e0002 00000001ffffffff ffff8880777c9d01
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Reclaimable, gfp_mask 0x1d2050(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL|__GFP_RECLAIMABLE), pid 27581, tgid 27578 (syz-executor.1), ts 1329203697007, free_ts 1325867801068
set_page_owner include/linux/page_owner.h:31 [inline]
post_alloc_hook+0x18d/0x1b0 mm/page_alloc.c:2533
prep_new_page mm/page_alloc.c:2540 [inline]
get_page_from_freelist+0x32ed/0x3480 mm/page_alloc.c:4292
__alloc_pages+0x28d/0x770 mm/page_alloc.c:5559
alloc_slab_page+0x6a/0x150 mm/slub.c:1794
allocate_slab mm/slub.c:1939 [inline]
new_slab+0x84/0x2d0 mm/slub.c:1992
___slab_alloc+0xa71/0x1080 mm/slub.c:3180
__slab_alloc mm/slub.c:3279 [inline]
slab_alloc_node mm/slub.c:3364 [inline]
slab_alloc mm/slub.c:3406 [inline]
__kmem_cache_alloc_lru mm/slub.c:3413 [inline]
kmem_cache_alloc_lru+0x1a5/0x2d0 mm/slub.c:3429
alloc_inode_sb include/linux/fs.h:3133 [inline]
f2fs_alloc_inode+0x171/0x540 fs/f2fs/super.c:1366
alloc_inode fs/inode.c:259 [inline]
iget_locked+0x1c8/0x830 fs/inode.c:1328
f2fs_iget+0x52/0x4ac0 fs/f2fs/inode.c:497
f2fs_fill_super+0x6037/0x7cb0 fs/f2fs/super.c:4341
mount_bdev+0x2c9/0x3f0 fs/super.c:1432
legacy_get_tree+0xeb/0x180 fs/fs_context.c:611
vfs_get_tree+0x88/0x270 fs/super.c:1562
do_new_mount+0x28b/0xae0 fs/namespace.c:3040
do_mount fs/namespace.c:3383 [inline]
__do_sys_mount fs/namespace.c:3591 [inline]
__se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3568
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1460 [inline]
free_pcp_prepare mm/page_alloc.c:1510 [inline]
free_unref_page_prepare+0xf63/0x1120 mm/page_alloc.c:3388
free_unref_page+0x98/0x570 mm/page_alloc.c:3484
qlist_free_all+0x22/0x60 mm/kasan/quarantine.c:187
kasan_quarantine_reduce+0x162/0x180 mm/kasan/quarantine.c:294
__kasan_slab_alloc+0x1f/0x70 mm/kasan/common.c:305
kasan_slab_alloc include/linux/kasan.h:201 [inline]
slab_post_alloc_hook+0x50/0x370 mm/slab.h:737
slab_alloc_node mm/slub.c:3398 [inline]
kmem_cache_alloc_node+0x136/0x310 mm/slub.c:3443
__alloc_skb+0xdf/0x620 net/core/skbuff.c:497
alloc_skb include/linux/skbuff.h:1268 [inline]
nlmsg_new include/net/netlink.h:970 [inline]
netlink_ack+0x34e/0xe60 net/netlink/af_netlink.c:2475
netlink_rcv_skb+0x24a/0x410 net/netlink/af_netlink.c:2531
genl_rcv+0x24/0x40 net/netlink/genetlink.c:861
netlink_unicast_kernel net/netlink/af_netlink.c:1328 [inline]
netlink_unicast+0x7bf/0x990 net/netlink/af_netlink.c:1354
netlink_sendmsg+0xa26/0xd60 net/netlink/af_netlink.c:1903
sock_sendmsg_nosec net/socket.c:716 [inline]
sock_sendmsg net/socket.c:736 [inline]
__sys_sendto+0x471/0x5f0 net/socket.c:2117
__do_sys_sendto net/socket.c:2129 [inline]
__se_sys_sendto net/socket.c:2125 [inline]
__x64_sys_sendto+0xda/0xf0 net/socket.c:2125
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
Memory state around the buggy address:
ffff888085020780: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffff888085020800: 00 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc
>ffff888085020880: fc fc fc fc fc fc fc fc fc fc fc fc fc 00 00 00
^
ffff888085020900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffff888085020980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================
---
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syzbot
Dec 9, 2023, 2:13:15 AM12/9/23
to syzkaller...@googlegroups.com
Auto-closing this bug as obsolete.
Crashes did not happen for a while, no reproducer and no activity.
Crashes did not happen for a while, no reproducer and no activity.
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