==================================================================
BUG: KASAN: slab-use-after-free in diWrite+0x1160/0x1e70 fs/jfs/jfs_imap.c:753
Write of size 32 at addr ffff88801277f200 by task syz.1.2/5922

CPU: 1 UID: 0 PID: 5922 Comm: syz.1.2 Not tainted 6.14.0-syzkaller-11144-g1e7857b28020 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:408 [inline]
 print_report+0x16e/0x5b0 mm/kasan/report.c:521
 kasan_report+0x143/0x180 mm/kasan/report.c:634
 check_region_inline mm/kasan/generic.c:-1 [inline]
 kasan_check_range+0x28f/0x2a0 mm/kasan/generic.c:189
 __asan_memcpy+0x40/0x70 mm/kasan/shadow.c:106
 diWrite+0x1160/0x1e70 fs/jfs/jfs_imap.c:753
 txCommit+0xa22/0x6c40 fs/jfs/jfs_txnmgr.c:1255
 add_missing_indices+0x8f3/0xc50 fs/jfs/jfs_dtree.c:2664
 jfs_readdir+0x2155/0x4010 fs/jfs/jfs_dtree.c:3020
 wrap_directory_iterator+0x91/0xd0 fs/readdir.c:65
 iterate_dir+0x5a9/0x760 fs/readdir.c:108
 __do_sys_getdents fs/readdir.c:322 [inline]
 __se_sys_getdents+0x1ff/0x4e0 fs/readdir.c:308
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fde3178d169
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:00007fde32597038 EFLAGS: 00000246 ORIG_RAX: 000000000000004e
RAX: ffffffffffffffda RBX: 00007fde319a6080 RCX: 00007fde3178d169
RDX: 00000000000000b8 RSI: 0000200000001fc0 RDI: 0000000000000005
RBP: 00007fde3180e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fde319a6080 R15: 00007ffc74fa5408
 </TASK>

Allocated by task 5695:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 unpoison_slab_object mm/kasan/common.c:319 [inline]
 __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:345
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4138 [inline]
 slab_alloc_node mm/slub.c:4187 [inline]
 kmem_cache_alloc_noprof+0x1e1/0x390 mm/slub.c:4194
 vma_lock_alloc kernel/fork.c:446 [inline]
 vm_area_alloc+0x10e/0x1d0 kernel/fork.c:477
 __mmap_new_vma mm/vma.c:2345 [inline]
 __mmap_region mm/vma.c:2462 [inline]
 mmap_region+0x1b10/0x2fc0 mm/vma.c:2540
 do_mmap+0xd42/0x1420 mm/mmap.c:561
 vm_mmap_pgoff+0x2a2/0x530 mm/util.c:579
 ksys_mmap_pgoff+0x4ee/0x720 mm/mmap.c:607
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 5695:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:576
 poison_slab_object mm/kasan/common.c:247 [inline]
 __kasan_slab_free+0x59/0x70 mm/kasan/common.c:264
 kasan_slab_free include/linux/kasan.h:233 [inline]
 slab_free_hook mm/slub.c:2376 [inline]
 slab_free mm/slub.c:4633 [inline]
 kmem_cache_free+0x197/0x410 mm/slub.c:4735
 vma_lock_free kernel/fork.c:458 [inline]
 __vm_area_free+0xe3/0x110 kernel/fork.c:518
 exit_mmap+0x73b/0xdd0 mm/mmap.c:1308
 __mmput+0x115/0x410 kernel/fork.c:1360
 exit_mm+0x221/0x310 kernel/exit.c:586
 do_exit+0x994/0x2950 kernel/exit.c:941
 do_group_exit+0x207/0x2c0 kernel/exit.c:1103
 __do_sys_exit_group kernel/exit.c:1114 [inline]
 __se_sys_exit_group kernel/exit.c:1112 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1112
 x64_sys_call+0x26c3/0x26d0 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff88801277f1b0
 which belongs to the cache vma_lock of size 152
The buggy address is located 80 bytes inside of
 freed 152-byte region [ffff88801277f1b0, ffff88801277f248)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88801277fe58 pfn:0x1277f
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 ffffea0000caf288 ffffea0000ceff48 0000000000000000
raw: ffff88801277fe58 0000000000120000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as freed
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x52cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 5695, tgid 5695 (sed), ts 69564756101, free_ts 97545134774
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f4/0x240 mm/page_alloc.c:1585
 prep_new_page mm/page_alloc.c:1593 [inline]
 get_page_from_freelist+0x3ab2/0x3c50 mm/page_alloc.c:3538
 __alloc_frozen_pages_noprof+0x266/0x580 mm/page_alloc.c:4806
 alloc_pages_mpol+0x339/0x690 mm/mempolicy.c:2301
 alloc_slab_page mm/slub.c:2446 [inline]
 allocate_slab+0x8f/0x3a0 mm/slub.c:2610
 new_slab mm/slub.c:2663 [inline]
 ___slab_alloc+0xc3b/0x1500 mm/slub.c:3849
 __slab_alloc+0x58/0xa0 mm/slub.c:3939
 __slab_alloc_node mm/slub.c:4014 [inline]
 slab_alloc_node mm/slub.c:4175 [inline]
 kmem_cache_alloc_noprof+0x270/0x390 mm/slub.c:4194
 vma_lock_alloc kernel/fork.c:446 [inline]
 vm_area_dup+0x61/0x2e0 kernel/fork.c:499
 __split_vma+0x1c2/0xc00 mm/vma.c:466
 vms_gather_munmap_vmas+0x2eb/0x15f0 mm/vma.c:1268
 __mmap_prepare mm/vma.c:2246 [inline]
 __mmap_region mm/vma.c:2449 [inline]
 mmap_region+0xa54/0x2fc0 mm/vma.c:2540
 do_mmap+0xd42/0x1420 mm/mmap.c:561
 vm_mmap_pgoff+0x2a2/0x530 mm/util.c:579
 ksys_mmap_pgoff+0x4ee/0x720 mm/mmap.c:607
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
page last free pid 5840 tgid 5840 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1130 [inline]
 __free_frozen_pages+0xd7c/0x1020 mm/page_alloc.c:2707
 __slab_free+0x2c6/0x390 mm/slub.c:4544
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4138 [inline]
 slab_alloc_node mm/slub.c:4187 [inline]
 kmem_cache_alloc_noprof+0x1e1/0x390 mm/slub.c:4194
 getname_kernel+0x59/0x2f0 fs/namei.c:249
 kern_path+0x1d/0x50 fs/namei.c:2786
 do_loopback+0xce/0x530 fs/namespace.c:3061
 do_mount fs/namespace.c:4218 [inline]
 __do_sys_mount fs/namespace.c:4429 [inline]
 __se_sys_mount+0x38c/0x400 fs/namespace.c:4406
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffff88801277f100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff88801277f180: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff88801277f200: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                   ^
 ffff88801277f280: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff88801277f300: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
==================================================================