EXT4-fs error (device loop0): __ext4_get_inode_loc:4340: comm kworker/u4:2: Invalid inode table block 0 in block_group 0
==================================================================
BUG: KASAN: use-after-free in ext4_ext_binsearch fs/ext4/extents.c:827 [inline]
BUG: KASAN: use-after-free in ext4_find_extent+0xbab/0xdb0 fs/ext4/extents.c:946
Read of size 4 at addr ffff88811d3ab078 by task kworker/u4:2/43
CPU: 0 PID: 43 Comm: kworker/u4:2 Not tainted 5.15.148-syzkaller-1069047-g993bed180178 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
Workqueue: writeback wb_workfn (flush-7:0)
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x151/0x1b7 lib/dump_stack.c:106
print_address_description+0x87/0x3b0 mm/kasan/report.c:248
__kasan_report mm/kasan/report.c:427 [inline]
kasan_report+0x179/0x1c0 mm/kasan/report.c:444
__asan_report_load4_noabort+0x14/0x20 mm/kasan/report_generic.c:308
ext4_ext_binsearch fs/ext4/extents.c:827 [inline]
ext4_find_extent+0xbab/0xdb0 fs/ext4/extents.c:946
ext4_ext_map_blocks+0x254/0x7250 fs/ext4/extents.c:4103
ext4_map_blocks+0xaa7/0x1e00 fs/ext4/inode.c:646
mpage_map_one_extent fs/ext4/inode.c:2409 [inline]
mpage_map_and_submit_extent fs/ext4/inode.c:2462 [inline]
ext4_writepages+0x1628/0x4000 fs/ext4/inode.c:2830
do_writepages+0x40e/0x670 mm/page-writeback.c:2366
__writeback_single_inode+0xdf/0xa70 fs/fs-writeback.c:1647
writeback_sb_inodes+0xb2a/0x1920 fs/fs-writeback.c:1930
wb_writeback+0x3b9/0x9e0 fs/fs-writeback.c:2104
wb_do_writeback fs/fs-writeback.c:2247 [inline]
wb_workfn+0x3d9/0x1110 fs/fs-writeback.c:2288
process_one_work+0x6bb/0xc10 kernel/workqueue.c:2325
worker_thread+0xad5/0x12a0 kernel/workqueue.c:2472
kthread+0x421/0x510 kernel/kthread.c:337
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
The buggy address belongs to the page:
page:ffffea000474eac0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x11d3ab
flags: 0x4000000000000000(zone=1)
raw: 4000000000000000 ffffea000479dec8 ffffea0004770d88 0000000000000000
raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as freed
page last allocated via order 0, migratetype Movable, gfp_mask 0x100dca(GFP_HIGHUSER_MOVABLE|__GFP_ZERO), pid 283, ts 22354530712, free_ts 24768095354
set_page_owner include/linux/page_owner.h:33 [inline]
post_alloc_hook+0x1a3/0x1b0 mm/page_alloc.c:2604
prep_new_page+0x1b/0x110 mm/page_alloc.c:2610
get_page_from_freelist+0x3550/0x35d0 mm/page_alloc.c:4484
__alloc_pages+0x27e/0x8f0 mm/page_alloc.c:5776
__alloc_pages_node include/linux/gfp.h:591 [inline]
alloc_pages_node include/linux/gfp.h:605 [inline]
alloc_pages include/linux/gfp.h:618 [inline]
do_anonymous_page mm/memory.c:4026 [inline]
handle_pte_fault+0xe1f/0x2340 mm/memory.c:4861
do_handle_mm_fault+0x1fed/0x2330 mm/memory.c:5266
do_user_addr_fault arch/x86/mm/fault.c:1365 [inline]
handle_page_fault arch/x86/mm/fault.c:1549 [inline]
exc_page_fault+0x26f/0x830 arch/x86/mm/fault.c:1605
asm_exc_page_fault+0x27/0x30 arch/x86/include/asm/idtentry.h:568
page last free stack trace:
reset_page_owner include/linux/page_owner.h:26 [inline]
free_pages_prepare mm/page_alloc.c:1471 [inline]
free_pcp_prepare mm/page_alloc.c:1543 [inline]
free_unref_page_prepare+0x7c8/0x7d0 mm/page_alloc.c:3533
free_unref_page_list+0x14b/0xa60 mm/page_alloc.c:3670
release_pages+0x1310/0x1370 mm/swap.c:1009
free_pages_and_swap_cache+0x8a/0xa0 mm/swap_state.c:320
tlb_batch_pages_flush mm/mmu_gather.c:49 [inline]
tlb_flush_mmu_free mm/mmu_gather.c:240 [inline]
tlb_flush_mmu+0xd0/0x180 mm/mmu_gather.c:247
zap_pte_range mm/memory.c:1504 [inline]
zap_pmd_range mm/memory.c:1553 [inline]
zap_pud_range mm/memory.c:1582 [inline]
zap_p4d_range mm/memory.c:1603 [inline]
unmap_page_range+0x1a96/0x1ca0 mm/memory.c:1624
unmap_single_vma mm/memory.c:1669 [inline]
unmap_vmas+0x389/0x560 mm/memory.c:1701
exit_mmap+0x3d8/0x6f0 mm/mmap.c:3209
__mmput+0x95/0x310 kernel/fork.c:1179
mmput+0x5b/0x170 kernel/fork.c:1202
exit_mm kernel/exit.c:552 [inline]
do_exit+0xb9c/0x2ca0 kernel/exit.c:865
do_group_exit+0x141/0x310 kernel/exit.c:1000
get_signal+0x7a3/0x1630 kernel/signal.c:2896
arch_do_signal_or_restart+0xbd/0x1680 arch/x86/kernel/signal.c:867
handle_signal_work kernel/entry/common.c:148 [inline]
exit_to_user_mode_loop+0xa0/0xe0 kernel/entry/common.c:172
exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:208
Memory state around the buggy address:
ffff88811d3aaf00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffff88811d3aaf80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff88811d3ab000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
^
ffff88811d3ab080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ffff88811d3ab100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
==================================================================
------------[ cut here ]------------
kernel BUG at fs/ext4/inode.c:2421!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 43 Comm: kworker/u4:2 Tainted: G B 5.15.148-syzkaller-1069047-g993bed180178 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
Workqueue: writeback wb_workfn (flush-7:0)
RIP: 0010:mpage_map_one_extent fs/ext4/inode.c:2421 [inline]
RIP: 0010:mpage_map_and_submit_extent fs/ext4/inode.c:2462 [inline]
RIP: 0010:ext4_writepages+0x3f4b/0x4000 fs/ext4/inode.c:2830
Code: 00 74 08 48 89 df e8 f4 d7 c9 ff 48 8b 3b 48 8b 74 24 48 48 8b 54 24 28 44 89 e9 45 89 f8 e8 cc 2d 08 00 eb 58 e8 05 db 87 ff <0f> 0b e8 fe da 87 ff eb 3b e8 f7 da 87 ff eb 72 e8 f0 da 87 ff 31
RSP: 0018:ffffc900002cf000 EFLAGS: 00010293
RAX: ffffffff81e8444b RBX: dffffc0000000000 RCX: ffff8881057d4f00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900002cf410 R08: ffffffff81e81e0b R09: ffffed1021235d4a
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffffc900002cf2e0 R14: 0000000000000000 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffef324e158 CR3: 000000010c894000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
do_writepages+0x40e/0x670 mm/page-writeback.c:2366
__writeback_single_inode+0xdf/0xa70 fs/fs-writeback.c:1647
writeback_sb_inodes+0xb2a/0x1920 fs/fs-writeback.c:1930
wb_writeback+0x3b9/0x9e0 fs/fs-writeback.c:2104
wb_do_writeback fs/fs-writeback.c:2247 [inline]
wb_workfn+0x3d9/0x1110 fs/fs-writeback.c:2288
process_one_work+0x6bb/0xc10 kernel/workqueue.c:2325
worker_thread+0xad5/0x12a0 kernel/workqueue.c:2472
kthread+0x421/0x510 kernel/kthread.c:337
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
Modules linked in:
---[ end trace dc2e508a296710b8 ]---
RIP: 0010:mpage_map_one_extent fs/ext4/inode.c:2421 [inline]
RIP: 0010:mpage_map_and_submit_extent fs/ext4/inode.c:2462 [inline]
RIP: 0010:ext4_writepages+0x3f4b/0x4000 fs/ext4/inode.c:2830
Code: 00 74 08 48 89 df e8 f4 d7 c9 ff 48 8b 3b 48 8b 74 24 48 48 8b 54 24 28 44 89 e9 45 89 f8 e8 cc 2d 08 00 eb 58 e8 05 db 87 ff <0f> 0b e8 fe da 87 ff eb 3b e8 f7 da 87 ff eb 72 e8 f0 da 87 ff 31
RSP: 0018:ffffc900002cf000 EFLAGS: 00010293
RAX: ffffffff81e8444b RBX: dffffc0000000000 RCX: ffff8881057d4f00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900002cf410 R08: ffffffff81e81e0b R09: ffffed1021235d4a
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffffc900002cf2e0 R14: 0000000000000000 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffef324e158 CR3: 000000010c894000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400