[v5.15] KASAN: use-after-free Read in sock_def_write_space (2)
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syzbot
Dec 5, 2023, 7:46:25 PM12/5/23
to syzkaller...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: 9b91d36ba301 Linux 5.15.141
git tree: linux-5.15.y
console output: https://syzkaller.appspot.com/x/log.txt?x=1307e3f8e80000
kernel config: https://syzkaller.appspot.com/x/.config?x=4a82f519bd246319
dashboard link: https://syzkaller.appspot.com/bug?extid=a72dfe1c550b7feb34f8
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
userspace arch: arm64
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/4b6df384a084/disk-9b91d36b.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/43304db9d8de/vmlinux-9b91d36b.xz
kernel image: https://storage.googleapis.com/syzbot-assets/04c9a4d2fc86/Image-9b91d36b.gz.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+a72dfe...@syzkaller.appspotmail.com
==================================================================
BUG: KASAN: use-after-free in list_empty include/linux/list.h:290 [inline]
BUG: KASAN: use-after-free in waitqueue_active include/linux/wait.h:129 [inline]
BUG: KASAN: use-after-free in wq_has_sleeper include/linux/wait.h:163 [inline]
BUG: KASAN: use-after-free in skwq_has_sleeper include/net/sock.h:2289 [inline]
BUG: KASAN: use-after-free in sock_def_write_space+0x18c/0x394 net/core/sock.c:3090
Read of size 8 at addr ffff00011cc56080 by task ksoftirqd/0/14
CPU: 0 PID: 14 Comm: ksoftirqd/0 Not tainted 5.15.141-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
Call trace:
dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152
show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
print_address_description+0x7c/0x3f0 mm/kasan/report.c:248
__kasan_report mm/kasan/report.c:434 [inline]
kasan_report+0x174/0x1e4 mm/kasan/report.c:451
__asan_report_load8_noabort+0x44/0x50 mm/kasan/report_generic.c:309
list_empty include/linux/list.h:290 [inline]
waitqueue_active include/linux/wait.h:129 [inline]
wq_has_sleeper include/linux/wait.h:163 [inline]
skwq_has_sleeper include/net/sock.h:2289 [inline]
sock_def_write_space+0x18c/0x394 net/core/sock.c:3090
sock_wfree+0x110/0x230 net/core/sock.c:2209
skb_release_head_state+0x108/0x2a0 net/core/skbuff.c:729
skb_release_all net/core/skbuff.c:740 [inline]
__kfree_skb net/core/skbuff.c:756 [inline]
consume_skb+0x10c/0x40c net/core/skbuff.c:914
__dev_kfree_skb_any+0xc8/0xf4 net/core/dev.c:3141
dev_consume_skb_any include/linux/netdevice.h:4021 [inline]
gve_clean_tx_done+0x26c/0xce8 drivers/net/ethernet/google/gve/gve_tx.c:639
gve_tx_poll+0x15c/0x214 drivers/net/ethernet/google/gve/gve_tx.c:701
gve_napi_poll+0x7c/0x27c drivers/net/ethernet/google/gve/gve_main.c:203
__napi_poll+0xb4/0x624 net/core/dev.c:7032
napi_poll net/core/dev.c:7099 [inline]
net_rx_action+0x500/0xc10 net/core/dev.c:7186
__do_softirq+0x344/0xdb0 kernel/softirq.c:558
run_ksoftirqd+0x68/0x258 kernel/softirq.c:921
smpboot_thread_fn+0x4b0/0x920 kernel/smpboot.c:164
kthread+0x37c/0x45c kernel/kthread.c:319
ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870
Allocated by task 5155:
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track mm/kasan/common.c:46 [inline]
set_alloc_info mm/kasan/common.c:434 [inline]
__kasan_slab_alloc+0x8c/0xcc mm/kasan/common.c:467
kasan_slab_alloc include/linux/kasan.h:254 [inline]
slab_post_alloc_hook+0x74/0x3f4 mm/slab.h:519
slab_alloc_node mm/slub.c:3220 [inline]
slab_alloc mm/slub.c:3228 [inline]
kmem_cache_alloc+0x1dc/0x45c mm/slub.c:3233
sock_alloc_inode+0x24/0xc4 net/socket.c:303
alloc_inode fs/inode.c:236 [inline]
new_inode_pseudo+0x68/0x200 fs/inode.c:937
sock_alloc net/socket.c:626 [inline]
__sock_create+0x134/0x884 net/socket.c:1448
sock_create net/socket.c:1535 [inline]
__sys_socket+0x168/0x310 net/socket.c:1577
__do_sys_socket net/socket.c:1586 [inline]
__se_sys_socket net/socket.c:1584 [inline]
__arm64_sys_socket+0x7c/0x94 net/socket.c:1584
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
Freed by task 5141:
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track+0x4c/0x84 mm/kasan/common.c:46
kasan_set_free_info+0x28/0x4c mm/kasan/generic.c:360
____kasan_slab_free+0x118/0x164 mm/kasan/common.c:366
__kasan_slab_free+0x18/0x28 mm/kasan/common.c:374
kasan_slab_free include/linux/kasan.h:230 [inline]
slab_free_hook mm/slub.c:1705 [inline]
slab_free_freelist_hook+0x128/0x1ec mm/slub.c:1731
slab_free mm/slub.c:3499 [inline]
kmem_cache_free+0xdc/0x3c4 mm/slub.c:3515
sock_free_inode+0x28/0x38 net/socket.c:324
i_callback+0x50/0x78 fs/inode.c:225
rcu_do_batch kernel/rcu/tree.c:2523 [inline]
rcu_core+0x830/0x1b34 kernel/rcu/tree.c:2763
rcu_core_si+0x10/0x1c kernel/rcu/tree.c:2776
__do_softirq+0x344/0xdb0 kernel/softirq.c:558
Last potentially related work creation:
kasan_save_stack+0x38/0x68 mm/kasan/common.c:38
kasan_record_aux_stack+0xd4/0x11c mm/kasan/generic.c:348
__call_rcu kernel/rcu/tree.c:3007 [inline]
call_rcu+0x118/0xb40 kernel/rcu/tree.c:3087
destroy_inode fs/inode.c:291 [inline]
evict+0x5fc/0x68c fs/inode.c:602
iput_final fs/inode.c:1705 [inline]
iput+0x744/0x824 fs/inode.c:1731
dentry_unlink_inode+0x370/0x4b0 fs/dcache.c:376
__dentry_kill+0x324/0x5e4 fs/dcache.c:582
dentry_kill+0xc8/0x250
dput+0x21c/0x458 fs/dcache.c:888
__fput+0x500/0x7f0 fs/file_table.c:288
____fput+0x20/0x30 fs/file_table.c:308
task_work_run+0x130/0x1e4 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
do_notify_resume+0x262c/0x32b8 arch/arm64/kernel/signal.c:946
prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline]
exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline]
el0_svc+0xfc/0x1f0 arch/arm64/kernel/entry-common.c:609
el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
Second to last potentially related work creation:
kasan_save_stack+0x38/0x68 mm/kasan/common.c:38
kasan_record_aux_stack+0xd4/0x11c mm/kasan/generic.c:348
__call_rcu kernel/rcu/tree.c:3007 [inline]
call_rcu+0x118/0xb40 kernel/rcu/tree.c:3087
destroy_inode fs/inode.c:291 [inline]
evict+0x5fc/0x68c fs/inode.c:602
iput_final fs/inode.c:1705 [inline]
iput+0x744/0x824 fs/inode.c:1731
dentry_unlink_inode+0x370/0x4b0 fs/dcache.c:376
__dentry_kill+0x324/0x5e4 fs/dcache.c:582
dentry_kill+0xc8/0x250
dput+0x21c/0x458 fs/dcache.c:888
__fput+0x500/0x7f0 fs/file_table.c:288
____fput+0x20/0x30 fs/file_table.c:308
task_work_run+0x130/0x1e4 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
do_notify_resume+0x262c/0x32b8 arch/arm64/kernel/signal.c:946
prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline]
exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline]
el0_svc+0xfc/0x1f0 arch/arm64/kernel/entry-common.c:609
el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
The buggy address belongs to the object at ffff00011cc56000
which belongs to the cache sock_inode_cache of size 1408
The buggy address is located 128 bytes inside of
1408-byte region [ffff00011cc56000, ffff00011cc56580)
The buggy address belongs to the page:
page:00000000e6f5f1c1 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x15cc50
head:00000000e6f5f1c1 order:3 compound_mapcount:0 compound_pincount:0
memcg:ffff0000c9053601
flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000010200 fffffc00037b9800 0000000200000002 ffff0000c085a480
raw: 0000000000000000 0000000000150015 00000001ffffffff ffff0000c9053601
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff00011cc55f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff00011cc56000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff00011cc56080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff00011cc56100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff00011cc56180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
---
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.
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If you want to undo deduplication, reply with:
#syz undup
syzbot found the following issue on:
HEAD commit: 9b91d36ba301 Linux 5.15.141
git tree: linux-5.15.y
console output: https://syzkaller.appspot.com/x/log.txt?x=1307e3f8e80000
kernel config: https://syzkaller.appspot.com/x/.config?x=4a82f519bd246319
dashboard link: https://syzkaller.appspot.com/bug?extid=a72dfe1c550b7feb34f8
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
userspace arch: arm64
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/4b6df384a084/disk-9b91d36b.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/43304db9d8de/vmlinux-9b91d36b.xz
kernel image: https://storage.googleapis.com/syzbot-assets/04c9a4d2fc86/Image-9b91d36b.gz.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+a72dfe...@syzkaller.appspotmail.com
==================================================================
BUG: KASAN: use-after-free in list_empty include/linux/list.h:290 [inline]
BUG: KASAN: use-after-free in waitqueue_active include/linux/wait.h:129 [inline]
BUG: KASAN: use-after-free in wq_has_sleeper include/linux/wait.h:163 [inline]
BUG: KASAN: use-after-free in skwq_has_sleeper include/net/sock.h:2289 [inline]
BUG: KASAN: use-after-free in sock_def_write_space+0x18c/0x394 net/core/sock.c:3090
Read of size 8 at addr ffff00011cc56080 by task ksoftirqd/0/14
CPU: 0 PID: 14 Comm: ksoftirqd/0 Not tainted 5.15.141-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
Call trace:
dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152
show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
print_address_description+0x7c/0x3f0 mm/kasan/report.c:248
__kasan_report mm/kasan/report.c:434 [inline]
kasan_report+0x174/0x1e4 mm/kasan/report.c:451
__asan_report_load8_noabort+0x44/0x50 mm/kasan/report_generic.c:309
list_empty include/linux/list.h:290 [inline]
waitqueue_active include/linux/wait.h:129 [inline]
wq_has_sleeper include/linux/wait.h:163 [inline]
skwq_has_sleeper include/net/sock.h:2289 [inline]
sock_def_write_space+0x18c/0x394 net/core/sock.c:3090
sock_wfree+0x110/0x230 net/core/sock.c:2209
skb_release_head_state+0x108/0x2a0 net/core/skbuff.c:729
skb_release_all net/core/skbuff.c:740 [inline]
__kfree_skb net/core/skbuff.c:756 [inline]
consume_skb+0x10c/0x40c net/core/skbuff.c:914
__dev_kfree_skb_any+0xc8/0xf4 net/core/dev.c:3141
dev_consume_skb_any include/linux/netdevice.h:4021 [inline]
gve_clean_tx_done+0x26c/0xce8 drivers/net/ethernet/google/gve/gve_tx.c:639
gve_tx_poll+0x15c/0x214 drivers/net/ethernet/google/gve/gve_tx.c:701
gve_napi_poll+0x7c/0x27c drivers/net/ethernet/google/gve/gve_main.c:203
__napi_poll+0xb4/0x624 net/core/dev.c:7032
napi_poll net/core/dev.c:7099 [inline]
net_rx_action+0x500/0xc10 net/core/dev.c:7186
__do_softirq+0x344/0xdb0 kernel/softirq.c:558
run_ksoftirqd+0x68/0x258 kernel/softirq.c:921
smpboot_thread_fn+0x4b0/0x920 kernel/smpboot.c:164
kthread+0x37c/0x45c kernel/kthread.c:319
ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870
Allocated by task 5155:
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track mm/kasan/common.c:46 [inline]
set_alloc_info mm/kasan/common.c:434 [inline]
__kasan_slab_alloc+0x8c/0xcc mm/kasan/common.c:467
kasan_slab_alloc include/linux/kasan.h:254 [inline]
slab_post_alloc_hook+0x74/0x3f4 mm/slab.h:519
slab_alloc_node mm/slub.c:3220 [inline]
slab_alloc mm/slub.c:3228 [inline]
kmem_cache_alloc+0x1dc/0x45c mm/slub.c:3233
sock_alloc_inode+0x24/0xc4 net/socket.c:303
alloc_inode fs/inode.c:236 [inline]
new_inode_pseudo+0x68/0x200 fs/inode.c:937
sock_alloc net/socket.c:626 [inline]
__sock_create+0x134/0x884 net/socket.c:1448
sock_create net/socket.c:1535 [inline]
__sys_socket+0x168/0x310 net/socket.c:1577
__do_sys_socket net/socket.c:1586 [inline]
__se_sys_socket net/socket.c:1584 [inline]
__arm64_sys_socket+0x7c/0x94 net/socket.c:1584
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
Freed by task 5141:
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track+0x4c/0x84 mm/kasan/common.c:46
kasan_set_free_info+0x28/0x4c mm/kasan/generic.c:360
____kasan_slab_free+0x118/0x164 mm/kasan/common.c:366
__kasan_slab_free+0x18/0x28 mm/kasan/common.c:374
kasan_slab_free include/linux/kasan.h:230 [inline]
slab_free_hook mm/slub.c:1705 [inline]
slab_free_freelist_hook+0x128/0x1ec mm/slub.c:1731
slab_free mm/slub.c:3499 [inline]
kmem_cache_free+0xdc/0x3c4 mm/slub.c:3515
sock_free_inode+0x28/0x38 net/socket.c:324
i_callback+0x50/0x78 fs/inode.c:225
rcu_do_batch kernel/rcu/tree.c:2523 [inline]
rcu_core+0x830/0x1b34 kernel/rcu/tree.c:2763
rcu_core_si+0x10/0x1c kernel/rcu/tree.c:2776
__do_softirq+0x344/0xdb0 kernel/softirq.c:558
Last potentially related work creation:
kasan_save_stack+0x38/0x68 mm/kasan/common.c:38
kasan_record_aux_stack+0xd4/0x11c mm/kasan/generic.c:348
__call_rcu kernel/rcu/tree.c:3007 [inline]
call_rcu+0x118/0xb40 kernel/rcu/tree.c:3087
destroy_inode fs/inode.c:291 [inline]
evict+0x5fc/0x68c fs/inode.c:602
iput_final fs/inode.c:1705 [inline]
iput+0x744/0x824 fs/inode.c:1731
dentry_unlink_inode+0x370/0x4b0 fs/dcache.c:376
__dentry_kill+0x324/0x5e4 fs/dcache.c:582
dentry_kill+0xc8/0x250
dput+0x21c/0x458 fs/dcache.c:888
__fput+0x500/0x7f0 fs/file_table.c:288
____fput+0x20/0x30 fs/file_table.c:308
task_work_run+0x130/0x1e4 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
do_notify_resume+0x262c/0x32b8 arch/arm64/kernel/signal.c:946
prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline]
exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline]
el0_svc+0xfc/0x1f0 arch/arm64/kernel/entry-common.c:609
el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
Second to last potentially related work creation:
kasan_save_stack+0x38/0x68 mm/kasan/common.c:38
kasan_record_aux_stack+0xd4/0x11c mm/kasan/generic.c:348
__call_rcu kernel/rcu/tree.c:3007 [inline]
call_rcu+0x118/0xb40 kernel/rcu/tree.c:3087
destroy_inode fs/inode.c:291 [inline]
evict+0x5fc/0x68c fs/inode.c:602
iput_final fs/inode.c:1705 [inline]
iput+0x744/0x824 fs/inode.c:1731
dentry_unlink_inode+0x370/0x4b0 fs/dcache.c:376
__dentry_kill+0x324/0x5e4 fs/dcache.c:582
dentry_kill+0xc8/0x250
dput+0x21c/0x458 fs/dcache.c:888
__fput+0x500/0x7f0 fs/file_table.c:288
____fput+0x20/0x30 fs/file_table.c:308
task_work_run+0x130/0x1e4 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
do_notify_resume+0x262c/0x32b8 arch/arm64/kernel/signal.c:946
prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline]
exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline]
el0_svc+0xfc/0x1f0 arch/arm64/kernel/entry-common.c:609
el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
The buggy address belongs to the object at ffff00011cc56000
which belongs to the cache sock_inode_cache of size 1408
The buggy address is located 128 bytes inside of
1408-byte region [ffff00011cc56000, ffff00011cc56580)
The buggy address belongs to the page:
page:00000000e6f5f1c1 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x15cc50
head:00000000e6f5f1c1 order:3 compound_mapcount:0 compound_pincount:0
memcg:ffff0000c9053601
flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000010200 fffffc00037b9800 0000000200000002 ffff0000c085a480
raw: 0000000000000000 0000000000150015 00000001ffffffff ffff0000c9053601
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff00011cc55f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff00011cc56000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff00011cc56080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff00011cc56100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff00011cc56180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
---
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syzbot
Mar 14, 2024, 8:45:22 PMMar 14
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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