==================================================================
BUG: KASAN: slab-use-after-free in lbmLogShutdown fs/jfs/jfs_logmgr.c:1862 [inline]
BUG: KASAN: slab-use-after-free in lmLogInit+0x1722/0x1ae0 fs/jfs/jfs_logmgr.c:1415
Read of size 8 at addr ffff8880797c7d18 by task syz.1.46/6129
CPU: 1 UID: 0 PID: 6129 Comm: syz.1.46 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
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+0xcd/0x630 mm/kasan/report.c:482
kasan_report+0xe0/0x110 mm/kasan/report.c:595
lbmLogShutdown fs/jfs/jfs_logmgr.c:1862 [inline]
lmLogInit+0x1722/0x1ae0 fs/jfs/jfs_logmgr.c:1415
open_inline_log fs/jfs/jfs_logmgr.c:1175 [inline]
lmLogOpen+0x7f0/0x13c0 fs/jfs/jfs_logmgr.c:1069
jfs_mount_rw+0x2e9/0x6f0 fs/jfs/jfs_mount.c:257
jfs_reconfigure+0x91e/0xb90 fs/jfs/super.c:409
reconfigure_super+0x450/0xb60 fs/super.c:1076
do_remount fs/namespace.c:3279 [inline]
path_mount+0x1a40/0x23a0 fs/namespace.c:4029
do_mount fs/namespace.c:4050 [inline]
__do_sys_mount fs/namespace.c:4238 [inline]
__se_sys_mount fs/namespace.c:4215 [inline]
__x64_sys_mount+0x293/0x310 fs/namespace.c:4215
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0xfa0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa891d8eec9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa892bf1038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fa891fe5fa0 RCX: 00007fa891d8eec9
RDX: 0000000000000000 RSI: 0000200000000000 RDI: 0000000000000000
RBP: 00007fa891e11f91 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000001c0030 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa891fe6038 R14: 00007fa891fe5fa0 R15: 00007ffef9e96648
Allocated by task 6129:
kasan_save_stack+0x33/0x60 mm/kasan/common.c:56
kasan_save_track+0x14/0x30 mm/kasan/common.c:77
poison_kmalloc_redzone mm/kasan/common.c:400 [inline]
__kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:417
kmalloc_noprof include/linux/slab.h:957 [inline]
lbmLogInit fs/jfs/jfs_logmgr.c:1821 [inline]
lmLogInit+0x40c/0x1ae0 fs/jfs/jfs_logmgr.c:1269
open_inline_log fs/jfs/jfs_logmgr.c:1175 [inline]
lmLogOpen+0x7f0/0x13c0 fs/jfs/jfs_logmgr.c:1069
jfs_mount_rw+0x2e9/0x6f0 fs/jfs/jfs_mount.c:257
jfs_reconfigure+0x91e/0xb90 fs/jfs/super.c:409
reconfigure_super+0x450/0xb60 fs/super.c:1076
do_remount fs/namespace.c:3279 [inline]
path_mount+0x1a40/0x23a0 fs/namespace.c:4029
do_mount fs/namespace.c:4050 [inline]
__do_sys_mount fs/namespace.c:4238 [inline]
__se_sys_mount fs/namespace.c:4215 [inline]
__x64_sys_mount+0x293/0x310 fs/namespace.c:4215
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0xfa0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Freed by task 6129:
kasan_save_stack+0x33/0x60 mm/kasan/common.c:56
kasan_save_track+0x14/0x30 mm/kasan/common.c:77
__kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:587
kasan_save_free_info mm/kasan/kasan.h:406 [inline]
poison_slab_object mm/kasan/common.c:252 [inline]
__kasan_slab_free+0x5f/0x80 mm/kasan/common.c:284
kasan_slab_free include/linux/kasan.h:234 [inline]
slab_free_hook mm/slub.c:2523 [inline]
slab_free mm/slub.c:6611 [inline]
kfree+0x2b8/0x6d0 mm/slub.c:6818
lbmLogShutdown fs/jfs/jfs_logmgr.c:1864 [inline]
lmLogInit+0x912/0x1ae0 fs/jfs/jfs_logmgr.c:1415
open_inline_log fs/jfs/jfs_logmgr.c:1175 [inline]
lmLogOpen+0x7f0/0x13c0 fs/jfs/jfs_logmgr.c:1069
jfs_mount_rw+0x2e9/0x6f0 fs/jfs/jfs_mount.c:257
jfs_reconfigure+0x91e/0xb90 fs/jfs/super.c:409
reconfigure_super+0x450/0xb60 fs/super.c:1076
do_remount fs/namespace.c:3279 [inline]
path_mount+0x1a40/0x23a0 fs/namespace.c:4029
do_mount fs/namespace.c:4050 [inline]
__do_sys_mount fs/namespace.c:4238 [inline]
__se_sys_mount fs/namespace.c:4215 [inline]
__x64_sys_mount+0x293/0x310 fs/namespace.c:4215
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0xfa0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
The buggy address belongs to the object at ffff8880797c7d00
which belongs to the cache kmalloc-192 of size 192
The buggy address is located 24 bytes inside of
freed 192-byte region [ffff8880797c7d00, ffff8880797c7dc0)
The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x797c7
anon flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000000 ffff88813ffa63c0 0000000000000000 dead000000000001
raw: 0000000000000000 0000000000100010 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 0x52cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 5970, tgid 5969 (syz.0.8), ts 115255029175, free_ts 115254063218
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1850
prep_new_page mm/page_alloc.c:1858 [inline]
get_page_from_freelist+0x10a3/0x3a30 mm/page_alloc.c:3884
__alloc_frozen_pages_noprof+0x25f/0x2470 mm/page_alloc.c:5183
alloc_pages_mpol+0x1fb/0x550 mm/mempolicy.c:2416
alloc_slab_page mm/slub.c:3039 [inline]
allocate_slab mm/slub.c:3212 [inline]
new_slab+0x24a/0x360 mm/slub.c:3266
___slab_alloc+0xdc4/0x1ae0 mm/slub.c:4636
__slab_alloc.constprop.0+0x63/0x110 mm/slub.c:4755
__slab_alloc_node mm/slub.c:4831 [inline]
slab_alloc_node mm/slub.c:5253 [inline]
__do_kmalloc_node mm/slub.c:5626 [inline]
__kmalloc_noprof+0x501/0x880 mm/slub.c:5639
kmalloc_noprof include/linux/slab.h:961 [inline]
kzalloc_noprof include/linux/slab.h:1094 [inline]
new_dir fs/proc/proc_sysctl.c:966 [inline]
get_subdir fs/proc/proc_sysctl.c:1010 [inline]
sysctl_mkdir_p fs/proc/proc_sysctl.c:1320 [inline]
__register_sysctl_table+0xea2/0x1900 fs/proc/proc_sysctl.c:1395
sysctl_route_net_init+0x15e/0x2c0 net/ipv4/route.c:3629
ops_init+0x1e2/0x5f0 net/core/net_namespace.c:137
setup_net+0x100/0x390 net/core/net_namespace.c:445
copy_net_ns+0x2f8/0x690 net/core/net_namespace.c:580
create_new_namespaces+0x3ea/0xa90 kernel/nsproxy.c:110
unshare_nsproxy_namespaces+0xc0/0x1f0 kernel/nsproxy.c:218
ksys_unshare+0x45b/0xa40 kernel/fork.c:3129
page last free pid 23 tgid 23 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1394 [inline]
__free_frozen_pages+0x7df/0x1160 mm/page_alloc.c:2906
rcu_do_batch kernel/rcu/tree.c:2605 [inline]
rcu_core+0x79c/0x1530 kernel/rcu/tree.c:2861
handle_softirqs+0x219/0x8e0 kernel/softirq.c:622
run_ksoftirqd kernel/softirq.c:1063 [inline]
run_ksoftirqd+0x3a/0x60 kernel/softirq.c:1055
smpboot_thread_fn+0x3f7/0xae0 kernel/smpboot.c:160
kthread+0x3c5/0x780 kernel/kthread.c:463
ret_from_fork+0x675/0x7d0 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
Memory state around the buggy address:
ffff8880797c7c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffff8880797c7c80: 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff8880797c7d00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff8880797c7d80: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
ffff8880797c7e00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
==================================================================
BUG: KASAN: slab-use-after-free in lbmLogShutdown fs/jfs/jfs_logmgr.c:1863 [inline]
BUG: KASAN: slab-use-after-free in lmLogInit+0x1740/0x1ae0 fs/jfs/jfs_logmgr.c:1415
Read of size 8 at addr ffff8880797c7d40 by task syz.1.46/6129
CPU: 0 UID: 0 PID: 6129 Comm: syz.1.46 Tainted: G B syzkaller #0 PREEMPT(full)
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
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+0xcd/0x630 mm/kasan/report.c:482
kasan_report+0xe0/0x110 mm/kasan/report.c:595
lbmLogShutdown fs/jfs/jfs_logmgr.c:1863 [inline]
lmLogInit+0x1740/0x1ae0 fs/jfs/jfs_logmgr.c:1415
open_inline_log fs/jfs/jfs_logmgr.c:1175 [inline]
lmLogOpen+0x7f0/0x13c0 fs/jfs/jfs_logmgr.c:1069
jfs_mount_rw+0x2e9/0x6f0 fs/jfs/jfs_mount.c:257
jfs_reconfigure+0x91e/0xb90 fs/jfs/super.c:409
reconfigure_super+0x450/0xb60 fs/super.c:1076
do_remount fs/namespace.c:3279 [inline]
path_mount+0x1a40/0x23a0 fs/namespace.c:4029
do_mount fs/namespace.c:4050 [inline]
__do_sys_mount fs/namespace.c:4238 [inline]
__se_sys_mount fs/namespace.c:4215 [inline]
__x64_sys_mount+0x293/0x310 fs/namespace.c:4215
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0xfa0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa891d8eec9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa892bf1038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fa891fe5fa0 RCX: 00007fa891d8eec9
RDX: 0000000000000000 RSI: 0000200000000000 RDI: 0000000000000000
RBP: 00007fa891e11f91 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000001c0030 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa891fe6038 R14: 00007fa891fe5fa0 R15: 00007ffef9e96648
Allocated by task 6129:
kasan_save_stack+0x33/0x60 mm/kasan/common.c:56
kasan_save_track+0x14/0x30 mm/kasan/common.c:77
poison_kmalloc_redzone mm/kasan/common.c:400 [inline]
__kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:417
kmalloc_noprof include/linux/slab.h:957 [inline]
lbmLogInit fs/jfs/jfs_logmgr.c:1821 [inline]
lmLogInit+0x40c/0x1ae0 fs/jfs/jfs_logmgr.c:1269
open_inline_log fs/jfs/jfs_logmgr.c:1175 [inline]
lmLogOpen+0x7f0/0x13c0 fs/jfs/jfs_logmgr.c:1069
jfs_mount_rw+0x2e9/0x6f0 fs/jfs/jfs_mount.c:257
jfs_reconfigure+0x91e/0xb90 fs/jfs/super.c:409
reconfigure_super+0x450/0xb60 fs/super.c:1076
do_remount fs/namespace.c:3279 [inline]
path_mount+0x1a40/0x23a0 fs/namespace.c:4029
do_mount fs/namespace.c:4050 [inline]
__do_sys_mount fs/namespace.c:4238 [inline]
__se_sys_mount fs/namespace.c:4215 [inline]
__x64_sys_mount+0x293/0x310 fs/namespace.c:4215
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0xfa0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Freed by task 6129:
kasan_save_stack+0x33/0x60 mm/kasan/common.c:56
kasan_save_track+0x14/0x30 mm/kasan/common.c:77
__kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:587
kasan_save_free_info mm/kasan/kasan.h:406 [inline]
poison_slab_object mm/kasan/common.c:252 [inline]
__kasan_slab_free+0x5f/0x80 mm/kasan/common.c:284
kasan_slab_free include/linux/kasan.h:234 [inline]
slab_free_hook mm/slub.c:2523 [inline]
slab_free mm/slub.c:6611 [inline]
kfree+0x2b8/0x6d0 mm/slub.c:6818
lbmLogShutdown fs/jfs/jfs_logmgr.c:1864 [inline]
lmLogInit+0x912/0x1ae0 fs/jfs/jfs_logmgr.c:1415
open_inline_log fs/jfs/jfs_logmgr.c:1175 [inline]
lmLogOpen+0x7f0/0x13c0 fs/jfs/jfs_logmgr.c:1069
jfs_mount_rw+0x2e9/0x6f0 fs/jfs/jfs_mount.c:257
jfs_reconfigure+0x91e/0xb90 fs/jfs/super.c:409
reconfigure_super+0x450/0xb60 fs/super.c:1076
do_remount fs/namespace.c:3279 [inline]
path_mount+0x1a40/0x23a0 fs/namespace.c:4029
do_mount fs/namespace.c:4050 [inline]
__do_sys_mount fs/namespace.c:4238 [inline]
__se_sys_mount fs/namespace.c:4215 [inline]
__x64_sys_mount+0x293/0x310 fs/namespace.c:4215
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0xfa0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
The buggy address belongs to the object at ffff8880797c7d00
which belongs to the cache kmalloc-192 of size 192
The buggy address is located 64 bytes inside of
freed 192-byte region [ffff8880797c7d00, ffff8880797c7dc0)
The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff8880797c7500 pfn:0x797c7
flags: 0xfff00000000200(workingset|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000200 ffff88813ffa63c0 ffffea0000c73b90 ffffea0001e17d90
raw: ffff8880797c7500 000000000010000c 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 0x52cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 5970, tgid 5969 (syz.0.8), ts 115255029175, free_ts 115254063218
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1850
prep_new_page mm/page_alloc.c:1858 [inline]
get_page_from_freelist+0x10a3/0x3a30 mm/page_alloc.c:3884
__alloc_frozen_pages_noprof+0x25f/0x2470 mm/page_alloc.c:5183
alloc_pages_mpol+0x1fb/0x550 mm/mempolicy.c:2416
alloc_slab_page mm/slub.c:3039 [inline]
allocate_slab mm/slub.c:3212 [inline]
new_slab+0x24a/0x360 mm/slub.c:3266
___slab_alloc+0xdc4/0x1ae0 mm/slub.c:4636
__slab_alloc.constprop.0+0x63/0x110 mm/slub.c:4755
__slab_alloc_node mm/slub.c:4831 [inline]
slab_alloc_node mm/slub.c:5253 [inline]
__do_kmalloc_node mm/slub.c:5626 [inline]
__kmalloc_noprof+0x501/0x880 mm/slub.c:5639
kmalloc_noprof include/linux/slab.h:961 [inline]
kzalloc_noprof include/linux/slab.h:1094 [inline]
new_dir fs/proc/proc_sysctl.c:966 [inline]
get_subdir fs/proc/proc_sysctl.c:1010 [inline]
sysctl_mkdir_p fs/proc/proc_sysctl.c:1320 [inline]
__register_sysctl_table+0xea2/0x1900 fs/proc/proc_sysctl.c:1395
sysctl_route_net_init+0x15e/0x2c0 net/ipv4/route.c:3629
ops_init+0x1e2/0x5f0 net/core/net_namespace.c:137
setup_net+0x100/0x390 net/core/net_namespace.c:445
copy_net_ns+0x2f8/0x690 net/core/net_namespace.c:580
create_new_namespaces+0x3ea/0xa90 kernel/nsproxy.c:110
unshare_nsproxy_namespaces+0xc0/0x1f0 kernel/nsproxy.c:218
ksys_unshare+0x45b/0xa40 kernel/fork.c:3129
page last free pid 23 tgid 23 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1394 [inline]
__free_frozen_pages+0x7df/0x1160 mm/page_alloc.c:2906
rcu_do_batch kernel/rcu/tree.c:2605 [inline]
rcu_core+0x79c/0x1530 kernel/rcu/tree.c:2861
handle_softirqs+0x219/0x8e0 kernel/softirq.c:622
run_ksoftirqd kernel/softirq.c:1063 [inline]
run_ksoftirqd+0x3a/0x60 kernel/softirq.c:1055
smpboot_thread_fn+0x3f7/0xae0 kernel/smpboot.c:160
kthread+0x3c5/0x780 kernel/kthread.c:463
ret_from_fork+0x675/0x7d0 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
Memory state around the buggy address:
ffff8880797c7c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffff8880797c7c80: 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff8880797c7d00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff8880797c7d80: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
ffff8880797c7e00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x30 pfn:0x612be
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 ffffea0000c5f3c8 ffffea00016f3d88 0000000000000000
raw: 0000000000000030 ffff8880785c2e40 00000000ffffffff 0000000000000000
page dumped because: VM_BUG_ON_PAGE(page_ref_count(page) == 0)
page_owner tracks the page as freed
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x440dc0(GFP_KERNEL_ACCOUNT|__GFP_ZERO|__GFP_COMP), pid 5826, tgid 5826 (syz-executor), ts 130392338025, free_ts 131464756703
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1850
prep_new_page mm/page_alloc.c:1858 [inline]
get_page_from_freelist+0x10a3/0x3a30 mm/page_alloc.c:3884
__alloc_frozen_pages_noprof+0x25f/0x2470 mm/page_alloc.c:5183
alloc_pages_mpol+0x1fb/0x550 mm/mempolicy.c:2416
alloc_pages_noprof mm/mempolicy.c:2507 [inline]
folio_alloc_noprof+0x20/0x2d0 mm/mempolicy.c:2517
filemap_alloc_folio_noprof+0x3a1/0x470 mm/filemap.c:1020
ractl_alloc_folio mm/readahead.c:189 [inline]
page_cache_ra_unbounded+0x377/0xa10 mm/readahead.c:275
do_page_cache_ra mm/readahead.c:332 [inline]
force_page_cache_ra+0x246/0x340 mm/readahead.c:361
page_cache_sync_ra+0x20c/0xbf0 mm/readahead.c:579
filemap_get_pages+0x717/0x1d30 mm/filemap.c:2638
filemap_read+0x3d2/0xe40 mm/filemap.c:2748
blkdev_read_iter+0x1ac/0x500 block/fops.c:859
new_sync_read fs/read_write.c:491 [inline]
vfs_read+0x8bf/0xcf0 fs/read_write.c:572
ksys_read+0x12a/0x250 fs/read_write.c:715
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0xfa0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 15 tgid 15 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1394 [inline]
__free_frozen_pages+0x7df/0x1160 mm/page_alloc.c:2906
pagetable_free include/linux/mm.h:2997 [inline]
pagetable_dtor_free include/linux/mm.h:3100 [inline]
__tlb_remove_table include/asm-generic/tlb.h:220 [inline]
__tlb_remove_table_free mm/mmu_gather.c:227 [inline]
tlb_remove_table_rcu+0x121/0x320 mm/mmu_gather.c:290
rcu_do_batch kernel/rcu/tree.c:2605 [inline]
rcu_core+0x79c/0x1530 kernel/rcu/tree.c:2861
handle_softirqs+0x219/0x8e0 kernel/softirq.c:622
run_ksoftirqd kernel/softirq.c:1063 [inline]
run_ksoftirqd+0x3a/0x60 kernel/softirq.c:1055
smpboot_thread_fn+0x3f7/0xae0 kernel/smpboot.c:160
kthread+0x3c5/0x780 kernel/kthread.c:463
ret_from_fork+0x675/0x7d0 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
------------[ cut here ]------------
kernel BUG at ./include/linux/mm.h:1101!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 6129 Comm: syz.1.46 Tainted: G B syzkaller #0 PREEMPT(full)
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:put_page_testzero include/linux/mm.h:1101 [inline]
RIP: 0010:put_page_testzero include/linux/mm.h:1099 [inline]
RIP: 0010:___free_pages+0x1e5/0x220 mm/page_alloc.c:5263
Code: 0f 94 c6 e9 b6 fe ff ff 48 c7 c6 c0 72 9c 8b 4c 89 ef e8 ce f0 ef ff 90 0f 0b 48 c7 c6 20 83 9c 8b 4c 89 ef e8 bc f0 ef ff 90 <0f> 0b 48 89 df e8 11 64 0e 00 e9 c0 fe ff ff e8 37 64 0e 00 e9 2f
RSP: 0018:ffffc90003cbf9c0 EFLAGS: 00010246
RAX: 0000000000080000 RBX: ffffea000184afb4 RCX: ffffc9000bf0c000
RDX: 0000000000080000 RSI: ffffffff821658c4 RDI: ffff888025eca2c4
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff908365d7 R11: 0000000000000001 R12: 0000000000000000
R13: ffffea000184af80 R14: 0000000000000000 R15: ffff8880797c7d00
FS: 00007fa892bf16c0(0000) GS:ffff8881249da000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f87a4d5a6b0 CR3: 0000000077d3a000 CR4: 0000000000350ef0
Call Trace:
lbmLogShutdown fs/jfs/jfs_logmgr.c:1863 [inline]
lmLogInit+0x90a/0x1ae0 fs/jfs/jfs_logmgr.c:1415
open_inline_log fs/jfs/jfs_logmgr.c:1175 [inline]
lmLogOpen+0x7f0/0x13c0 fs/jfs/jfs_logmgr.c:1069
jfs_mount_rw+0x2e9/0x6f0 fs/jfs/jfs_mount.c:257
jfs_reconfigure+0x91e/0xb90 fs/jfs/super.c:409
reconfigure_super+0x450/0xb60 fs/super.c:1076
do_remount fs/namespace.c:3279 [inline]
path_mount+0x1a40/0x23a0 fs/namespace.c:4029
do_mount fs/namespace.c:4050 [inline]
__do_sys_mount fs/namespace.c:4238 [inline]
__se_sys_mount fs/namespace.c:4215 [inline]
__x64_sys_mount+0x293/0x310 fs/namespace.c:4215
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0xfa0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa891d8eec9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa892bf1038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fa891fe5fa0 RCX: 00007fa891d8eec9
RDX: 0000000000000000 RSI: 0000200000000000 RDI: 0000000000000000
RBP: 00007fa891e11f91 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000001c0030 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa891fe6038 R14: 00007fa891fe5fa0 R15: 00007ffef9e96648
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:put_page_testzero include/linux/mm.h:1101 [inline]
RIP: 0010:put_page_testzero include/linux/mm.h:1099 [inline]
RIP: 0010:___free_pages+0x1e5/0x220 mm/page_alloc.c:5263
Code: 0f 94 c6 e9 b6 fe ff ff 48 c7 c6 c0 72 9c 8b 4c 89 ef e8 ce f0 ef ff 90 0f 0b 48 c7 c6 20 83 9c 8b 4c 89 ef e8 bc f0 ef ff 90 <0f> 0b 48 89 df e8 11 64 0e 00 e9 c0 fe ff ff e8 37 64 0e 00 e9 2f
RSP: 0018:ffffc90003cbf9c0 EFLAGS: 00010246
RAX: 0000000000080000 RBX: ffffea000184afb4 RCX: ffffc9000bf0c000
RDX: 0000000000080000 RSI: ffffffff821658c4 RDI: ffff888025eca2c4
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff908365d7 R11: 0000000000000001 R12: 0000000000000000
R13: ffffea000184af80 R14: 0000000000000000 R15: ffff8880797c7d00
FS: 00007fa892bf16c0(0000) GS:ffff888124ada000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055556598b5c8 CR3: 0000000077d3a000 CR4: 0000000000350ef0