==================================================================
BUG: KASAN: slab-out-of-bounds in iov_iter_revert lib/iov_iter.c:633 [inline]
BUG: KASAN: slab-out-of-bounds in iov_iter_revert+0x443/0x5a0 lib/iov_iter.c:611
Read of size 4 at addr ffff888020bab6d8 by task kworker/u8:8/5913
CPU: 0 UID: 0 PID: 5913 Comm: kworker/u8:8 Not tainted 6.14.0-rc2-syzkaller-00034-gfebbc555cf0f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Workqueue: events_unbound netfs_write_collection_worker
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
print_address_description mm/kasan/report.c:378 [inline]
print_report+0xc3/0x620 mm/kasan/report.c:489
kasan_report+0xd9/0x110 mm/kasan/report.c:602
iov_iter_revert lib/iov_iter.c:633 [inline]
iov_iter_revert+0x443/0x5a0 lib/iov_iter.c:611
netfs_retry_write_stream fs/netfs/write_retry.c:44 [inline]
netfs_retry_writes+0x163d/0x1a00 fs/netfs/write_retry.c:229
netfs_collect_write_results fs/netfs/write_collect.c:352 [inline]
netfs_write_collection_worker+0x23de/0x37c0 fs/netfs/write_collect.c:374
process_one_work+0x9c8/0x1ba0 kernel/workqueue.c:3236
process_scheduled_works kernel/workqueue.c:3317 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3398
kthread+0x3b2/0x750 kernel/kthread.c:464
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Allocated by task 5843:
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
__kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394
kasan_kmalloc include/linux/kasan.h:260 [inline]
__do_kmalloc_node mm/slub.c:4294 [inline]
__kmalloc_node_noprof+0x21f/0x510 mm/slub.c:4300
__kvmalloc_node_noprof+0xad/0x1a0 mm/util.c:662
xt_jumpstack_alloc net/netfilter/x_tables.c:1355 [inline]
xt_replace_table+0x1e3/0x940 net/netfilter/x_tables.c:1394
__do_replace+0x1d3/0x9d0 net/ipv4/netfilter/ip_tables.c:1064
do_replace net/ipv4/netfilter/ip_tables.c:1141 [inline]
do_ipt_set_ctl+0x956/0xbe0 net/ipv4/netfilter/ip_tables.c:1635
nf_setsockopt+0x8d/0xf0 net/netfilter/nf_sockopt.c:101
ip_setsockopt+0xcb/0xf0 net/ipv4/ip_sockglue.c:1424
tcp_setsockopt+0xa7/0x100 net/ipv4/tcp.c:4030
do_sock_setsockopt+0x225/0x480 net/socket.c:2303
__sys_setsockopt+0x1a0/0x230 net/socket.c:2328
__do_sys_setsockopt net/socket.c:2334 [inline]
__se_sys_setsockopt net/socket.c:2331 [inline]
__x64_sys_setsockopt+0xbd/0x160 net/socket.c:2331
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Freed by task 5843:
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:576
poison_slab_object mm/kasan/common.c:247 [inline]
__kasan_slab_free+0x51/0x70 mm/kasan/common.c:264
kasan_slab_free include/linux/kasan.h:233 [inline]
slab_free_hook mm/slub.c:2353 [inline]
slab_free mm/slub.c:4609 [inline]
kfree+0x2c4/0x4d0 mm/slub.c:4757
kvfree+0x47/0x50 mm/util.c:705
xt_free_table_info+0xec/0x220 net/netfilter/x_tables.c:1209
__do_replace+0x75b/0x9d0 net/ipv4/netfilter/ip_tables.c:1084
do_replace net/ipv4/netfilter/ip_tables.c:1141 [inline]
do_ipt_set_ctl+0x956/0xbe0 net/ipv4/netfilter/ip_tables.c:1635
nf_setsockopt+0x8d/0xf0 net/netfilter/nf_sockopt.c:101
ip_setsockopt+0xcb/0xf0 net/ipv4/ip_sockglue.c:1424
tcp_setsockopt+0xa7/0x100 net/ipv4/tcp.c:4030
do_sock_setsockopt+0x225/0x480 net/socket.c:2303
__sys_setsockopt+0x1a0/0x230 net/socket.c:2328
__do_sys_setsockopt net/socket.c:2334 [inline]
__se_sys_setsockopt net/socket.c:2331 [inline]
__x64_sys_setsockopt+0xbd/0x160 net/socket.c:2331
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
The buggy address belongs to the object at ffff888020bab6c0
which belongs to the cache kmalloc-16 of size 16
The buggy address is located 8 bytes to the right of
allocated 16-byte region [ffff888020bab6c0, ffff888020bab6d0)
The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x20bab
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000000 ffff88801b041640 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000800080 00000000f5000000 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x252800(GFP_NOWAIT|__GFP_NORETRY|__GFP_COMP|__GFP_THISNODE), pid 5831, tgid 5831 (syz-executor), ts 124453930742, free_ts 124446016192
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x181/0x1b0 mm/page_alloc.c:1551
prep_new_page mm/page_alloc.c:1559 [inline]
get_page_from_freelist+0xfce/0x2f80 mm/page_alloc.c:3477
__alloc_frozen_pages_noprof+0x221/0x2470 mm/page_alloc.c:4739
alloc_slab_page mm/slub.c:2425 [inline]
allocate_slab mm/slub.c:2587 [inline]
new_slab+0x94/0x330 mm/slub.c:2640
___slab_alloc+0xc5d/0x1720 mm/slub.c:3826
__slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3916
__slab_alloc_node mm/slub.c:3991 [inline]
slab_alloc_node mm/slub.c:4152 [inline]
__do_kmalloc_node mm/slub.c:4293 [inline]
__kmalloc_node_noprof+0x2f0/0x510 mm/slub.c:4300
__kvmalloc_node_noprof+0xad/0x1a0 mm/util.c:662
xt_jumpstack_alloc net/netfilter/x_tables.c:1355 [inline]
xt_replace_table+0x1e3/0x940 net/netfilter/x_tables.c:1394
__do_replace+0x1d3/0x9d0 net/ipv4/netfilter/ip_tables.c:1064
do_replace net/ipv4/netfilter/ip_tables.c:1141 [inline]
do_ipt_set_ctl+0x956/0xbe0 net/ipv4/netfilter/ip_tables.c:1635
nf_setsockopt+0x8d/0xf0 net/netfilter/nf_sockopt.c:101
ip_setsockopt+0xcb/0xf0 net/ipv4/ip_sockglue.c:1424
tcp_setsockopt+0xa7/0x100 net/ipv4/tcp.c:4030
do_sock_setsockopt+0x225/0x480 net/socket.c:2303
__sys_setsockopt+0x1a0/0x230 net/socket.c:2328
page last free pid 6201 tgid 6196 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
free_frozen_pages+0x6db/0xfb0 mm/page_alloc.c:2660
tlb_batch_list_free mm/mmu_gather.c:159 [inline]
tlb_finish_mmu+0x237/0x7b0 mm/mmu_gather.c:491
exit_mmap+0x40e/0xba0 mm/mmap.c:1297
__mmput+0x12a/0x410 kernel/fork.c:1356
mmput+0x62/0x70 kernel/fork.c:1378
exit_mm kernel/exit.c:570 [inline]
do_exit+0x9ba/0x2d70 kernel/exit.c:925
do_group_exit+0xd3/0x2a0 kernel/exit.c:1087
get_signal+0x24ed/0x26c0 kernel/signal.c:3036
arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x150/0x2a0 kernel/entry/common.c:218
do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Memory state around the buggy address:
ffff888020bab580: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc
ffff888020bab600: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc
>ffff888020bab680: fa fb fc fc fa fb fc fc fa fb fc fc 00 00 fc fc
^
ffff888020bab700: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc
ffff888020bab780: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc
==================================================================
==================================================================
BUG: KASAN: slab-use-after-free in iov_iter_revert lib/iov_iter.c:633 [inline]
BUG: KASAN: slab-use-after-free in iov_iter_revert+0x521/0x5a0 lib/iov_iter.c:611
Read of size 4 at addr ffff888020bab6c8 by task kworker/u8:8/5913
CPU: 0 UID: 0 PID: 5913 Comm: kworker/u8:8 Tainted: G B 6.14.0-rc2-syzkaller-00034-gfebbc555cf0f #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Workqueue: events_unbound netfs_write_collection_worker
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
print_address_description mm/kasan/report.c:378 [inline]
print_report+0xc3/0x620 mm/kasan/report.c:489
kasan_report+0xd9/0x110 mm/kasan/report.c:602
iov_iter_revert lib/iov_iter.c:633 [inline]
iov_iter_revert+0x521/0x5a0 lib/iov_iter.c:611
netfs_retry_write_stream fs/netfs/write_retry.c:44 [inline]
netfs_retry_writes+0x163d/0x1a00 fs/netfs/write_retry.c:229
netfs_collect_write_results fs/netfs/write_collect.c:352 [inline]
netfs_write_collection_worker+0x23de/0x37c0 fs/netfs/write_collect.c:374
process_one_work+0x9c8/0x1ba0 kernel/workqueue.c:3236
process_scheduled_works kernel/workqueue.c:3317 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3398
kthread+0x3b2/0x750 kernel/kthread.c:464
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Allocated by task 5843:
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
__kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394
kasan_kmalloc include/linux/kasan.h:260 [inline]
__do_kmalloc_node mm/slub.c:4294 [inline]
__kmalloc_node_noprof+0x21f/0x510 mm/slub.c:4300
__kvmalloc_node_noprof+0xad/0x1a0 mm/util.c:662
xt_jumpstack_alloc net/netfilter/x_tables.c:1355 [inline]
xt_replace_table+0x1e3/0x940 net/netfilter/x_tables.c:1394
__do_replace+0x1d3/0x9d0 net/ipv4/netfilter/ip_tables.c:1064
do_replace net/ipv4/netfilter/ip_tables.c:1141 [inline]
do_ipt_set_ctl+0x956/0xbe0 net/ipv4/netfilter/ip_tables.c:1635
nf_setsockopt+0x8d/0xf0 net/netfilter/nf_sockopt.c:101
ip_setsockopt+0xcb/0xf0 net/ipv4/ip_sockglue.c:1424
tcp_setsockopt+0xa7/0x100 net/ipv4/tcp.c:4030
do_sock_setsockopt+0x225/0x480 net/socket.c:2303
__sys_setsockopt+0x1a0/0x230 net/socket.c:2328
__do_sys_setsockopt net/socket.c:2334 [inline]
__se_sys_setsockopt net/socket.c:2331 [inline]
__x64_sys_setsockopt+0xbd/0x160 net/socket.c:2331
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Freed by task 5843:
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:576
poison_slab_object mm/kasan/common.c:247 [inline]
__kasan_slab_free+0x51/0x70 mm/kasan/common.c:264
kasan_slab_free include/linux/kasan.h:233 [inline]
slab_free_hook mm/slub.c:2353 [inline]
slab_free mm/slub.c:4609 [inline]
kfree+0x2c4/0x4d0 mm/slub.c:4757
kvfree+0x47/0x50 mm/util.c:705
xt_free_table_info+0xec/0x220 net/netfilter/x_tables.c:1209
__do_replace+0x75b/0x9d0 net/ipv4/netfilter/ip_tables.c:1084
do_replace net/ipv4/netfilter/ip_tables.c:1141 [inline]
do_ipt_set_ctl+0x956/0xbe0 net/ipv4/netfilter/ip_tables.c:1635
nf_setsockopt+0x8d/0xf0 net/netfilter/nf_sockopt.c:101
ip_setsockopt+0xcb/0xf0 net/ipv4/ip_sockglue.c:1424
tcp_setsockopt+0xa7/0x100 net/ipv4/tcp.c:4030
do_sock_setsockopt+0x225/0x480 net/socket.c:2303
__sys_setsockopt+0x1a0/0x230 net/socket.c:2328
__do_sys_setsockopt net/socket.c:2334 [inline]
__se_sys_setsockopt net/socket.c:2331 [inline]
__x64_sys_setsockopt+0xbd/0x160 net/socket.c:2331
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
The buggy address belongs to the object at ffff888020bab6c0
which belongs to the cache kmalloc-16 of size 16
The buggy address is located 8 bytes inside of
freed 16-byte region [ffff888020bab6c0, ffff888020bab6d0)
The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x20bab
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000000 ffff88801b041640 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000800080 00000000f5000000 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x252800(GFP_NOWAIT|__GFP_NORETRY|__GFP_COMP|__GFP_THISNODE), pid 5831, tgid 5831 (syz-executor), ts 124453930742, free_ts 124446016192
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x181/0x1b0 mm/page_alloc.c:1551
prep_new_page mm/page_alloc.c:1559 [inline]
get_page_from_freelist+0xfce/0x2f80 mm/page_alloc.c:3477
__alloc_frozen_pages_noprof+0x221/0x2470 mm/page_alloc.c:4739
alloc_slab_page mm/slub.c:2425 [inline]
allocate_slab mm/slub.c:2587 [inline]
new_slab+0x94/0x330 mm/slub.c:2640
___slab_alloc+0xc5d/0x1720 mm/slub.c:3826
__slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3916
__slab_alloc_node mm/slub.c:3991 [inline]
slab_alloc_node mm/slub.c:4152 [inline]
__do_kmalloc_node mm/slub.c:4293 [inline]
__kmalloc_node_noprof+0x2f0/0x510 mm/slub.c:4300
__kvmalloc_node_noprof+0xad/0x1a0 mm/util.c:662
xt_jumpstack_alloc net/netfilter/x_tables.c:1355 [inline]
xt_replace_table+0x1e3/0x940 net/netfilter/x_tables.c:1394
__do_replace+0x1d3/0x9d0 net/ipv4/netfilter/ip_tables.c:1064
do_replace net/ipv4/netfilter/ip_tables.c:1141 [inline]
do_ipt_set_ctl+0x956/0xbe0 net/ipv4/netfilter/ip_tables.c:1635
nf_setsockopt+0x8d/0xf0 net/netfilter/nf_sockopt.c:101
ip_setsockopt+0xcb/0xf0 net/ipv4/ip_sockglue.c:1424
tcp_setsockopt+0xa7/0x100 net/ipv4/tcp.c:4030
do_sock_setsockopt+0x225/0x480 net/socket.c:2303
__sys_setsockopt+0x1a0/0x230 net/socket.c:2328
page last free pid 6201 tgid 6196 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
free_frozen_pages+0x6db/0xfb0 mm/page_alloc.c:2660
tlb_batch_list_free mm/mmu_gather.c:159 [inline]
tlb_finish_mmu+0x237/0x7b0 mm/mmu_gather.c:491
exit_mmap+0x40e/0xba0 mm/mmap.c:1297
__mmput+0x12a/0x410 kernel/fork.c:1356
mmput+0x62/0x70 kernel/fork.c:1378
exit_mm kernel/exit.c:570 [inline]
do_exit+0x9ba/0x2d70 kernel/exit.c:925
do_group_exit+0xd3/0x2a0 kernel/exit.c:1087
get_signal+0x24ed/0x26c0 kernel/signal.c:3036
arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x150/0x2a0 kernel/entry/common.c:218
do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Memory state around the buggy address:
ffff888020bab580: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc
ffff888020bab600: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc
>ffff888020bab680: fa fb fc fc fa fb fc fc fa fb fc fc 00 00 fc fc
^
ffff888020bab700: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc
ffff888020bab780: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc
==================================================================
==================================================================
BUG: KASAN: slab-use-after-free in iov_iter_bvec_advance lib/iov_iter.c:504 [inline]
BUG: KASAN: slab-use-after-free in iov_iter_advance+0x652/0x6c0 lib/iov_iter.c:576
Read of size 4 at addr ffff888020bab6c8 by task kworker/u8:8/5913
CPU: 0 UID: 0 PID: 5913 Comm: kworker/u8:8 Tainted: G B 6.14.0-rc2-syzkaller-00034-gfebbc555cf0f #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Workqueue: events_unbound netfs_write_collection_worker
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
print_address_description mm/kasan/report.c:378 [inline]
print_report+0xc3/0x620 mm/kasan/report.c:489
kasan_report+0xd9/0x110 mm/kasan/report.c:602
iov_iter_bvec_advance lib/iov_iter.c:504 [inline]
iov_iter_advance+0x652/0x6c0 lib/iov_iter.c:576
netfs_reissue_write+0x13d/0x240 fs/netfs/write_issue.c:250
netfs_retry_write_stream fs/netfs/write_retry.c:46 [inline]
netfs_retry_writes+0x165a/0x1a00 fs/netfs/write_retry.c:229
netfs_collect_write_results fs/netfs/write_collect.c:352 [inline]
netfs_write_collection_worker+0x23de/0x37c0 fs/netfs/write_collect.c:374
process_one_work+0x9c8/0x1ba0 kernel/workqueue.c:3236
process_scheduled_works kernel/workqueue.c:3317 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3398
kthread+0x3b2/0x750 kernel/kthread.c:464
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Allocated by task 5843:
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
__kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394
kasan_kmalloc include/linux/kasan.h:260 [inline]
__do_kmalloc_node mm/slub.c:4294 [inline]
__kmalloc_node_noprof+0x21f/0x510 mm/slub.c:4300
__kvmalloc_node_noprof+0xad/0x1a0 mm/util.c:662
xt_jumpstack_alloc net/netfilter/x_tables.c:1355 [inline]
xt_replace_table+0x1e3/0x940 net/netfilter/x_tables.c:1394
__do_replace+0x1d3/0x9d0 net/ipv4/netfilter/ip_tables.c:1064
do_replace net/ipv4/netfilter/ip_tables.c:1141 [inline]
do_ipt_set_ctl+0x956/0xbe0 net/ipv4/netfilter/ip_tables.c:1635
nf_setsockopt+0x8d/0xf0 net/netfilter/nf_sockopt.c:101
ip_setsockopt+0xcb/0xf0 net/ipv4/ip_sockglue.c:1424
tcp_setsockopt+0xa7/0x100 net/ipv4/tcp.c:4030
do_sock_setsockopt+0x225/0x480 net/socket.c:2303
__sys_setsockopt+0x1a0/0x230 net/socket.c:2328
__do_sys_setsockopt net/socket.c:2334 [inline]
__se_sys_setsockopt net/socket.c:2331 [inline]
__x64_sys_setsockopt+0xbd/0x160 net/socket.c:2331
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Freed by task 5843:
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:576
poison_slab_object mm/kasan/common.c:247 [inline]
__kasan_slab_free+0x51/0x70 mm/kasan/common.c:264
kasan_slab_free include/linux/kasan.h:233 [inline]
slab_free_hook mm/slub.c:2353 [inline]
slab_free mm/slub.c:4609 [inline]
kfree+0x2c4/0x4d0 mm/slub.c:4757
kvfree+0x47/0x50 mm/util.c:705
xt_free_table_info+0xec/0x220 net/netfilter/x_tables.c:1209
__do_replace+0x75b/0x9d0 net/ipv4/netfilter/ip_tables.c:1084
do_replace net/ipv4/netfilter/ip_tables.c:1141 [inline]
do_ipt_set_ctl+0x956/0xbe0 net/ipv4/netfilter/ip_tables.c:1635
nf_setsockopt+0x8d/0xf0 net/netfilter/nf_sockopt.c:101
ip_setsockopt+0xcb/0xf0 net/ipv4/ip_sockglue.c:1424
tcp_setsockopt+0xa7/0x100 net/ipv4/tcp.c:4030
do_sock_setsockopt+0x225/0x480 net/socket.c:2303
__sys_setsockopt+0x1a0/0x230 net/socket.c:2328
__do_sys_setsockopt net/socket.c:2334 [inline]
__se_sys_setsockopt net/socket.c:2331 [inline]
__x64_sys_setsockopt+0xbd/0x160 net/socket.c:2331
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
The buggy address belongs to the object at ffff888020bab6c0
which belongs to the cache kmalloc-16 of size 16
The buggy address is located 8 bytes inside of
freed 16-byte region [ffff888020bab6c0, ffff888020bab6d0)
The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x20bab
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000000 ffff88801b041640 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000800080 00000000f5000000 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x252800(GFP_NOWAIT|__GFP_NORETRY|__GFP_COMP|__GFP_THISNODE), pid 5831, tgid 5831 (syz-executor), ts 124453930742, free_ts 124446016192
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x181/0x1b0 mm/page_alloc.c:1551
prep_new_page mm/page_alloc.c:1559 [inline]
get_page_from_freelist+0xfce/0x2f80 mm/page_alloc.c:3477
__alloc_frozen_pages_noprof+0x221/0x2470 mm/page_alloc.c:4739
alloc_slab_page mm/slub.c:2425 [inline]
allocate_slab mm/slub.c:2587 [inline]
new_slab+0x94/0x330 mm/slub.c:2640
___slab_alloc+0xc5d/0x1720 mm/slub.c:3826
__slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3916
__slab_alloc_node mm/slub.c:3991 [inline]
slab_alloc_node mm/slub.c:4152 [inline]
__do_kmalloc_node mm/slub.c:4293 [inline]
__kmalloc_node_noprof+0x2f0/0x510 mm/slub.c:4300
__kvmalloc_node_noprof+0xad/0x1a0 mm/util.c:662
xt_jumpstack_alloc net/netfilter/x_tables.c:1355 [inline]
xt_replace_table+0x1e3/0x940 net/netfilter/x_tables.c:1394
__do_replace+0x1d3/0x9d0 net/ipv4/netfilter/ip_tables.c:1064
do_replace net/ipv4/netfilter/ip_tables.c:1141 [inline]
do_ipt_set_ctl+0x956/0xbe0 net/ipv4/netfilter/ip_tables.c:1635
nf_setsockopt+0x8d/0xf0 net/netfilter/nf_sockopt.c:101
ip_setsockopt+0xcb/0xf0 net/ipv4/ip_sockglue.c:1424
tcp_setsockopt+0xa7/0x100 net/ipv4/tcp.c:4030
do_sock_setsockopt+0x225/0x480 net/socket.c:2303
__sys_setsockopt+0x1a0/0x230 net/socket.c:2328
page last free pid 6201 tgid 6196 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
free_frozen_pages+0x6db/0xfb0 mm/page_alloc.c:2660
tlb_batch_list_free mm/mmu_gather.c:159 [inline]
tlb_finish_mmu+0x237/0x7b0 mm/mmu_gather.c:491
exit_mmap+0x40e/0xba0 mm/mmap.c:1297
__mmput+0x12a/0x410 kernel/fork.c:1356
mmput+0x62/0x70 kernel/fork.c:1378
exit_mm kernel/exit.c:570 [inline]
do_exit+0x9ba/0x2d70 kernel/exit.c:925
do_group_exit+0xd3/0x2a0 kernel/exit.c:1087
get_signal+0x24ed/0x26c0 kernel/signal.c:3036
arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x150/0x2a0 kernel/entry/common.c:218
do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Memory state around the buggy address:
ffff888020bab580: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc
ffff888020bab600: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc
>ffff888020bab680: fa fb fc fc fa fb fc fc fa fb fc fc 00 00 fc fc
^
ffff888020bab700: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc
ffff888020bab780: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc
==================================================================
==================================================================
BUG: KASAN: slab-out-of-bounds in iov_iter_bvec_advance lib/iov_iter.c:504 [inline]
BUG: KASAN: slab-out-of-bounds in iov_iter_advance+0x652/0x6c0 lib/iov_iter.c:576
Read of size 4 at addr ffff888020bab6d8 by task kworker/u8:8/5913
CPU: 0 UID: 0 PID: 5913 Comm: kworker/u8:8 Tainted: G B 6.14.0-rc2-syzkaller-00034-gfebbc555cf0f #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Workqueue: events_unbound netfs_write_collection_worker
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
print_address_description mm/kasan/report.c:378 [inline]
print_report+0xc3/0x620 mm/kasan/report.c:489
kasan_report+0xd9/0x110 mm/kasan/report.c:602
iov_iter_bvec_advance lib/iov_iter.c:504 [inline]
iov_iter_advance+0x652/0x6c0 lib/iov_iter.c:576
netfs_reissue_write+0x13d/0x240 fs/netfs/write_issue.c:250
netfs_retry_write_stream fs/netfs/write_retry.c:46 [inline]
netfs_retry_writes+0x165a/0x1a00 fs/netfs/write_retry.c:229
netfs_collect_write_results fs/netfs/write_collect.c:352 [inline]
netfs_write_collection_worker+0x23de/0x37c0 fs/netfs/write_collect.c:374
process_one_work+0x9c8/0x1ba0 kernel/workqueue.c:3236
process_scheduled_works kernel/workqueue.c:3317 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3398
kthread+0x3b2/0x750 kernel/kthread.c:464
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Allocated by task 5843:
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
__kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394
kasan_kmalloc include/linux/kasan.h:260 [inline]
__do_kmalloc_node mm/slub.c:4294 [inline]
__kmalloc_node_noprof+0x21f/0x510 mm/slub.c:4300
__kvmalloc_node_noprof+0xad/0x1a0 mm/util.c:662
xt_jumpstack_alloc net/netfilter/x_tables.c:1355 [inline]
xt_replace_table+0x1e3/0x940 net/netfilter/x_tables.c:1394
__do_replace+0x1d3/0x9d0 net/ipv4/netfilter/ip_tables.c:1064
do_replace net/ipv4/netfilter/ip_tables.c:1141 [inline]
do_ipt_set_ctl+0x956/0xbe0 net/ipv4/netfilter/ip_tables.c:1635
nf_setsockopt+0x8d/0xf0 net/netfilter/nf_sockopt.c:101
ip_setsockopt+0xcb/0xf0 net/ipv4/ip_sockglue.c:1424
tcp_setsockopt+0xa7/0x100 net/ipv4/tcp.c:4030
do_sock_setsockopt+0x225/0x480 net/socket.c:2303
__sys_setsockopt+0x1a0/0x230 net/socket.c:2328
__do_sys_setsockopt net/socket.c:2334 [inline]
__se_sys_setsockopt net/socket.c:2331 [inline]
__x64_sys_setsockopt+0xbd/0x160 net/socket.c:2331
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Freed by task 5843:
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:576
poison_slab_object mm/kasan/common.c:247 [inline]
__kasan_slab_free+0x51/0x70 mm/kasan/common.c:264
kasan_slab_free include/linux/kasan.h:233 [inline]
slab_free_hook mm/slub.c:2353 [inline]
slab_free mm/slub.c:4609 [inline]
kfree+0x2c4/0x4d0 mm/slub.c:4757
kvfree+0x47/0x50 mm/util.c:705
xt_free_table_info+0xec/0x220 net/netfilter/x_tables.c:1209
__do_replace+0x75b/0x9d0 net/ipv4/netfilter/ip_tables.c:1084
do_replace net/ipv4/netfilter/ip_tables.c:1141 [inline]
do_ipt_set_ctl+0x956/0xbe0 net/ipv4/netfilter/ip_tables.c:1635
nf_setsockopt+0x8d/0xf0 net/netfilter/nf_sockopt.c:101
ip_setsockopt+0xcb/0xf0 net/ipv4/ip_sockglue.c:1424
tcp_setsockopt+0xa7/0x100 net/ipv4/tcp.c:4030
do_sock_setsockopt+0x225/0x480 net/socket.c:2303
__sys_setsockopt+0x1a0/0x230 net/socket.c:2328
__do_sys_setsockopt net/socket.c:2334 [inline]
__se_sys_setsockopt net/socket.c:2331 [inline]
__x64_sys_setsockopt+0xbd/0x160 net/socket.c:2331
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
The buggy address belongs to the object at ffff888020bab6c0
which belongs to the cache kmalloc-16 of size 16
The buggy address is located 8 bytes to the right of
allocated 16-byte region [ffff888020bab6c0, ffff888020bab6d0)
The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888020bab780 pfn:0x20bab
flags: 0xfff00000000200(workingset|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000200 ffff88801b041640 ffff88801b040408 ffffea0000d10950
raw: ffff888020bab780 0000000000800074 00000000f5000000 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x252800(GFP_NOWAIT|__GFP_NORETRY|__GFP_COMP|__GFP_THISNODE), pid 5831, tgid 5831 (syz-executor), ts 124453930742, free_ts 124446016192
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x181/0x1b0 mm/page_alloc.c:1551
prep_new_page mm/page_alloc.c:1559 [inline]
get_page_from_freelist+0xfce/0x2f80 mm/page_alloc.c:3477
__alloc_frozen_pages_noprof+0x221/0x2470 mm/page_alloc.c:4739
alloc_slab_page mm/slub.c:2425 [inline]
allocate_slab mm/slub.c:2587 [inline]
new_slab+0x94/0x330 mm/slub.c:2640
___slab_alloc+0xc5d/0x1720 mm/slub.c:3826
__slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3916
__slab_alloc_node mm/slub.c:3991 [inline]
slab_alloc_node mm/slub.c:4152 [inline]
__do_kmalloc_node mm/slub.c:4293 [inline]
__kmalloc_node_noprof+0x2f0/0x510 mm/slub.c:4300
__kvmalloc_node_noprof+0xad/0x1a0 mm/util.c:662
xt_jumpstack_alloc net/netfilter/x_tables.c:1355 [inline]
xt_replace_table+0x1e3/0x940 net/netfilter/x_tables.c:1394
__do_replace+0x1d3/0x9d0 net/ipv4/netfilter/ip_tables.c:1064
do_replace net/ipv4/netfilter/ip_tables.c:1141 [inline]
do_ipt_set_ctl+0x956/0xbe0 net/ipv4/netfilter/ip_tables.c:1635
nf_setsockopt+0x8d/0xf0 net/netfilter/nf_sockopt.c:101
ip_setsockopt+0xcb/0xf0 net/ipv4/ip_sockglue.c:1424
tcp_setsockopt+0xa7/0x100 net/ipv4/tcp.c:4030
do_sock_setsockopt+0x225/0x480 net/socket.c:2303
__sys_setsockopt+0x1a0/0x230 net/socket.c:2328
page last free pid 6201 tgid 6196 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
free_frozen_pages+0x6db/0xfb0 mm/page_alloc.c:2660
tlb_batch_list_free mm/mmu_gather.c:159 [inline]
tlb_finish_mmu+0x237/0x7b0 mm/mmu_gather.c:491
exit_mmap+0x40e/0xba0 mm/mmap.c:1297
__mmput+0x12a/0x410 kernel/fork.c:1356
mmput+0x62/0x70 kernel/fork.c:1378
exit_mm kernel/exit.c:570 [inline]
do_exit+0x9ba/0x2d70 kernel/exit.c:925
do_group_exit+0xd3/0x2a0 kernel/exit.c:1087
get_signal+0x24ed/0x26c0 kernel/signal.c:3036
arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x150/0x2a0 kernel/entry/common.c:218
do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Memory state around the buggy address:
ffff888020bab580: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc
ffff888020bab600: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc
>ffff888020bab680: fa fb fc fc fa fb fc fc fa fb fc fc 00 00 fc fc
^
ffff888020bab700: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc
ffff888020bab780: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc
==================================================================
==================================================================
BUG: KASAN: slab-use-after-free in iterate_bvec include/linux/iov_iter.h:117 [inline]
BUG: KASAN: slab-use-after-free in iterate_and_advance2 include/linux/iov_iter.h:304 [inline]
BUG: KASAN: slab-use-after-free in iterate_and_advance include/linux/iov_iter.h:328 [inline]
BUG: KASAN: slab-use-after-free in __copy_from_iter lib/iov_iter.c:249 [inline]
BUG: KASAN: slab-use-after-free in _copy_from_iter+0x1507/0x1560 lib/iov_iter.c:260
Read of size 4 at addr ffff888020bab6cc by task kworker/u8:8/5913
CPU: 0 UID: 0 PID: 5913 Comm: kworker/u8:8 Tainted: G B 6.14.0-rc2-syzkaller-00034-gfebbc555cf0f #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Workqueue: events_unbound netfs_write_collection_worker
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
print_address_description mm/kasan/report.c:378 [inline]
print_report+0xc3/0x620 mm/kasan/report.c:489
kasan_report+0xd9/0x110 mm/kasan/report.c:602
iterate_bvec include/linux/iov_iter.h:117 [inline]
iterate_and_advance2 include/linux/iov_iter.h:304 [inline]
iterate_and_advance include/linux/iov_iter.h:328 [inline]
__copy_from_iter lib/iov_iter.c:249 [inline]
_copy_from_iter+0x1507/0x1560 lib/iov_iter.c:260
copy_from_iter include/linux/uio.h:228 [inline]
copy_from_iter_full include/linux/uio.h:245 [inline]
pdu_write_u net/9p/protocol.c:234 [inline]
p9pdu_vwritef+0x2d0/0x1cf0 net/9p/protocol.c:614
p9_client_prepare_req+0x244/0x4d0 net/9p/client.c:651
p9_client_rpc+0x1c3/0xc10 net/9p/client.c:691
p9_client_write+0x31f/0x680 net/9p/client.c:1645
v9fs_issue_write+0xe4/0x1b0 fs/9p/vfs_addr.c:59
netfs_do_issue_write+0x95/0x110 fs/netfs/write_issue.c:239
netfs_retry_write_stream fs/netfs/write_retry.c:46 [inline]
netfs_retry_writes+0x165a/0x1a00 fs/netfs/write_retry.c:229
netfs_collect_write_results fs/netfs/write_collect.c:352 [inline]
netfs_write_collection_worker+0x23de/0x37c0 fs/netfs/write_collect.c:374
process_one_work+0x9c8/0x1ba0 kernel/workqueue.c:3236
process_scheduled_works kernel/workqueue.c:3317 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3398
kthread+0x3b2/0x750 kernel/kthread.c:464
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Allocated by task 5843:
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
__kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394
kasan_kmalloc include/linux/kasan.h:260 [inline]
__do_kmalloc_node mm/slub.c:4294 [inline]
__kmalloc_node_noprof+0x21f/0x510 mm/slub.c:4300
__kvmalloc_node_noprof+0xad/0x1a0 mm/util.c:662
xt_jumpstack_alloc net/netfilter/x_tables.c:1355 [inline]
xt_replace_table+0x1e3/0x940 net/netfilter/x_tables.c:1394
__do_replace+0x1d3/0x9d0 net/ipv4/netfilter/ip_tables.c:1064
do_replace net/ipv4/netfilter/ip_tables.c:1141 [inline]
do_ipt_set_ctl+0x956/0xbe0 net/ipv4/netfilter/ip_tables.c:1635
nf_setsockopt+0x8d/0xf0 net/netfilter/nf_sockopt.c:101
ip_setsockopt+0xcb/0xf0 net/ipv4/ip_sockglue.c:1424
tcp_setsockopt+0xa7/0x100 net/ipv4/tcp.c:4030
do_sock_setsockopt+0x225/0x480 net/socket.c:2303
__sys_setsockopt+0x1a0/0x230 net/socket.c:2328
__do_sys_setsockopt net/socket.c:2334 [inline]
__se_sys_setsockopt net/socket.c:2331 [inline]
__x64_sys_setsockopt+0xbd/0x160 net/socket.c:2331
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Freed by task 549107360:
------------[ cut here ]------------
pool index 100479 out of bounds (757) for stack id ffff8880
WARNING: CPU: 0 PID: 5913 at lib/stackdepot.c:451 depot_fetch_stack+0x95/0xc0 lib/stackdepot.c:451
Modules linked in:
CPU: 0 UID: 0 PID: 5913 Comm: kworker/u8:8 Tainted: G B 6.14.0-rc2-syzkaller-00034-gfebbc555cf0f #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Workqueue: events_unbound netfs_write_collection_worker
RIP: 0010:depot_fetch_stack+0x95/0xc0 lib/stackdepot.c:451
Code: c7 d8 8a d7 8e e8 4b d3 62 06 83 f8 01 75 b9 90 0f 0b 90 eb b3 90 48 c7 c7 d8 81 8b 8d 89 e9 44 89 ea 89 de e8 4c 8d 88 fc 90 <0f> 0b 90 90 31 c0 eb bc 90 0f 0b 90 31 c0 eb b4 90 0f 0b 90 31 c0
RSP: 0018:ffffc90002e371d0 EFLAGS: 00010082
RAX: 0000000000000000 RBX: 000000000001887f RCX: ffffffff817a1159
RDX: ffff88803049bc00 RSI: ffffffff817a1166 RDI: 0000000000000001
RBP: 00000000ffff8880 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 646e69206c6f6f70 R12: 0000000000003ff0
R13: 00000000000002f5 R14: 0000000000000004 R15: ffff88803049bc00
FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c248b63 CR3: 000000007a594000 CR4: 0000000000350ef0
Call Trace:
stack_depot_fetch+0x28/0x60 lib/stackdepot.c:714
stack_depot_print+0x20/0x70 lib/stackdepot.c:752
print_track mm/kasan/report.c:281 [inline]
describe_object_stacks mm/kasan/report.c:343 [inline]
describe_object mm/kasan/report.c:353 [inline]
print_address_description mm/kasan/report.c:382 [inline]
print_report+0x60d/0x620 mm/kasan/report.c:489
kasan_report+0xd9/0x110 mm/kasan/report.c:602
iterate_bvec include/linux/iov_iter.h:117 [inline]
iterate_and_advance2 include/linux/iov_iter.h:304 [inline]
iterate_and_advance include/linux/iov_iter.h:328 [inline]
__copy_from_iter lib/iov_iter.c:249 [inline]
_copy_from_iter+0x1507/0x1560 lib/iov_iter.c:260
copy_from_iter include/linux/uio.h:228 [inline]
copy_from_iter_full include/linux/uio.h:245 [inline]
pdu_write_u net/9p/protocol.c:234 [inline]
p9pdu_vwritef+0x2d0/0x1cf0 net/9p/protocol.c:614
p9_client_prepare_req+0x244/0x4d0 net/9p/client.c:651
p9_client_rpc+0x1c3/0xc10 net/9p/client.c:691
p9_client_write+0x31f/0x680 net/9p/client.c:1645
v9fs_issue_write+0xe4/0x1b0 fs/9p/vfs_addr.c:59
netfs_do_issue_write+0x95/0x110 fs/netfs/write_issue.c:239
netfs_retry_write_stream fs/netfs/write_retry.c:46 [inline]
netfs_retry_writes+0x165a/0x1a00 fs/netfs/write_retry.c:229
netfs_collect_write_results fs/netfs/write_collect.c:352 [inline]
netfs_write_collection_worker+0x23de/0x37c0 fs/netfs/write_collect.c:374
process_one_work+0x9c8/0x1ba0 kernel/workqueue.c:3236
process_scheduled_works kernel/workqueue.c:3317 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3398
kthread+0x3b2/0x750 kernel/kthread.c:464
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244