BUG: Bad page state in corrupted

Status: upstream: reported C repro on 2024/12/24 12:58
Bug presence: origin:lts-only
[Documentation on labels]
Reported-by: syzbot+8070a6cb99d47d0aeed0@syzkaller.appspotmail.com
First crash: 579d, last: 4d19h
Fix bisection: failed (error log, bisect log)
  
▶ ▼ Bug presence (2)
Date Name Commit Repro Result
2024/12/27 linux-6.1.y (ToT) 29f02ec58a94 C [report] BUG: Bad page state in corrupted
2024/12/27 upstream (ToT) d6ef8b40d075 C Didn't crash
▶ ▼ Similar bugs (1)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 BUG: Bad page state in corrupted origin:upstream -1 C error 6 13d 614d 0/3 upstream: reported C repro on 2024/11/19 11:50
▶ ▼ Fix bisection attempts (3)
Created Duration User Patch Repo Result
2025/09/28 04:51 2h07m fix candidate upstream OK (0) job log
2025/03/04 10:00 16m bisect fix linux-6.1.y error job log
2025/01/30 15:39 3h12m bisect fix linux-6.1.y OK (0) job log log

Sample crash report:
loop0: detected capacity change from 0 to 32768
ERROR: (device loop0): txAbort: 
ERROR: (device loop0): remounting filesystem as read-only
BUG: Bad page state in process syz-executor247  pfn:10ae46
page:0000000018fc97d1 refcount:0 mapcount:0 mapping:0000000000000000 index:0x33 pfn:0x10ae46
flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000002006 fffffc00034a2e88 ffff800020fa7720 0000000000000000
raw: 0000000000000033 ffff0000c38794d8 00000000ffffffff 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
Modules linked in:
CPU: 0 PID: 4330 Comm: syz-executor247 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026
Call trace:
 dump_backtrace+0x1c4/0x1f0 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack+0x30/0x40 lib/dump_stack.c:88
 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106
 dump_stack+0x1c/0x5c lib/dump_stack.c:113
 bad_page+0x188/0x1a8 mm/page_alloc.c:726
 free_page_is_bad_report+0xf8/0x170 mm/page_alloc.c:1308
 free_page_is_bad mm/page_alloc.c:1318 [inline]
 free_pages_prepare mm/page_alloc.c:1479 [inline]
 free_pcp_prepare mm/page_alloc.c:1537 [inline]
 free_unref_page_prepare+0x638/0xb24 mm/page_alloc.c:3414
 free_unref_page_list+0xd8/0x8dc mm/page_alloc.c:3555
 release_pages+0xdac/0xfdc mm/swap.c:1035
 __pagevec_release+0x84/0xf8 mm/swap.c:1055
 pagevec_release include/linux/pagevec.h:71 [inline]
 folio_batch_release include/linux/pagevec.h:135 [inline]
 truncate_inode_pages_range+0x2dc/0xd48 mm/truncate.c:397
 truncate_inode_pages+0x2c/0x3c mm/truncate.c:476
 jfs_remount+0x284/0x490 fs/jfs/super.c:451
 legacy_reconfigure+0xfc/0x114 fs/fs_context.c:655
 reconfigure_super+0x1d4/0x7cc fs/super.c:977
 vfs_fsconfig_locked+0x164/0x374 fs/fsopen.c:260
 __do_sys_fsconfig fs/fsopen.c:445 [inline]
 __se_sys_fsconfig fs/fsopen.c:320 [inline]
 __arm64_sys_fsconfig+0x640/0x790 fs/fsopen.c:320
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
BUG: Bad page state in process syz-executor247  pfn:1128ba
page:0000000023a278b3 refcount:0 mapcount:0 mapping:0000000000000000 index:0x32 pfn:0x1128ba
flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000002006 fffffc00037de4c8 ffff800020fa7720 0000000000000000
raw: 0000000000000032 ffff0000c38793e0 00000000ffffffff 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
Modules linked in:
CPU: 0 PID: 4330 Comm: syz-executor247 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026
Call trace:
 dump_backtrace+0x1c4/0x1f0 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack+0x30/0x40 lib/dump_stack.c:88
 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106
 dump_stack+0x1c/0x5c lib/dump_stack.c:113
 bad_page+0x188/0x1a8 mm/page_alloc.c:726
 free_page_is_bad_report+0xf8/0x170 mm/page_alloc.c:1308
 free_page_is_bad mm/page_alloc.c:1318 [inline]
 free_pages_prepare mm/page_alloc.c:1479 [inline]
 free_pcp_prepare mm/page_alloc.c:1537 [inline]
 free_unref_page_prepare+0x638/0xb24 mm/page_alloc.c:3414
 free_unref_page_list+0xd8/0x8dc mm/page_alloc.c:3555
 release_pages+0xdac/0xfdc mm/swap.c:1035
 __pagevec_release+0x84/0xf8 mm/swap.c:1055
 pagevec_release include/linux/pagevec.h:71 [inline]
 folio_batch_release include/linux/pagevec.h:135 [inline]
 truncate_inode_pages_range+0x2dc/0xd48 mm/truncate.c:397
 truncate_inode_pages+0x2c/0x3c mm/truncate.c:476
 jfs_remount+0x284/0x490 fs/jfs/super.c:451
 legacy_reconfigure+0xfc/0x114 fs/fs_context.c:655
 reconfigure_super+0x1d4/0x7cc fs/super.c:977
 vfs_fsconfig_locked+0x164/0x374 fs/fsopen.c:260
 __do_sys_fsconfig fs/fsopen.c:445 [inline]
 __se_sys_fsconfig fs/fsopen.c:320 [inline]
 __arm64_sys_fsconfig+0x640/0x790 fs/fsopen.c:320
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
BUG: Bad page state in process syz-executor247  pfn:11f793
page:000000003266b1b0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x31 pfn:0x11f793
flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000002006 fffffc0003390d08 ffff800020fa7720 0000000000000000
raw: 0000000000000031 ffff0000c38792e8 00000000ffffffff 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
Modules linked in:
CPU: 0 PID: 4330 Comm: syz-executor247 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026
Call trace:
 dump_backtrace+0x1c4/0x1f0 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack+0x30/0x40 lib/dump_stack.c:88
 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106
 dump_stack+0x1c/0x5c lib/dump_stack.c:113
 bad_page+0x188/0x1a8 mm/page_alloc.c:726
 free_page_is_bad_report+0xf8/0x170 mm/page_alloc.c:1308
 free_page_is_bad mm/page_alloc.c:1318 [inline]
 free_pages_prepare mm/page_alloc.c:1479 [inline]
 free_pcp_prepare mm/page_alloc.c:1537 [inline]
 free_unref_page_prepare+0x638/0xb24 mm/page_alloc.c:3414
 free_unref_page_list+0xd8/0x8dc mm/page_alloc.c:3555
 release_pages+0xdac/0xfdc mm/swap.c:1035
 __pagevec_release+0x84/0xf8 mm/swap.c:1055
 pagevec_release include/linux/pagevec.h:71 [inline]
 folio_batch_release include/linux/pagevec.h:135 [inline]
 truncate_inode_pages_range+0x2dc/0xd48 mm/truncate.c:397
 truncate_inode_pages+0x2c/0x3c mm/truncate.c:476
 jfs_remount+0x284/0x490 fs/jfs/super.c:451
 legacy_reconfigure+0xfc/0x114 fs/fs_context.c:655
 reconfigure_super+0x1d4/0x7cc fs/super.c:977
 vfs_fsconfig_locked+0x164/0x374 fs/fsopen.c:260
 __do_sys_fsconfig fs/fsopen.c:445 [inline]
 __se_sys_fsconfig fs/fsopen.c:320 [inline]
 __arm64_sys_fsconfig+0x640/0x790 fs/fsopen.c:320
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
BUG: Bad page state in process syz-executor247  pfn:111afc
page:00000000d7b4265c refcount:0 mapcount:0 mapping:0000000000000000 index:0xd pfn:0x111afc
flags: 0x5ffc20000002046(referenced|uptodate|workingset|private|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc20000002046 fffffc0003784e08 fffffc000369d688 0000000000000000
raw: 000000000000000d ffff0000d00f0e88 00000000ffffffff 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
Modules linked in:
CPU: 0 PID: 4330 Comm: syz-executor247 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026
Call trace:
 dump_backtrace+0x1c4/0x1f0 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack+0x30/0x40 lib/dump_stack.c:88
 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106
 dump_stack+0x1c/0x5c lib/dump_stack.c:113
 bad_page+0x188/0x1a8 mm/page_alloc.c:726
 free_page_is_bad_report+0xf8/0x170 mm/page_alloc.c:1308
 free_page_is_bad mm/page_alloc.c:1318 [inline]
 free_pages_prepare mm/page_alloc.c:1479 [inline]
 free_pcp_prepare mm/page_alloc.c:1537 [inline]
 free_unref_page_prepare+0x638/0xb24 mm/page_alloc.c:3414
 free_unref_page_list+0xd8/0x8dc mm/page_alloc.c:3555
 release_pages+0xdac/0xfdc mm/swap.c:1035
 __pagevec_release+0x84/0xf8 mm/swap.c:1055
 pagevec_release include/linux/pagevec.h:71 [inline]
 folio_batch_release include/linux/pagevec.h:135 [inline]
 truncate_inode_pages_range+0x2dc/0xd48 mm/truncate.c:397
 truncate_inode_pages+0x2c/0x3c mm/truncate.c:476
 jfs_remount+0x284/0x490 fs/jfs/super.c:451
 legacy_reconfigure+0xfc/0x114 fs/fs_context.c:655
 reconfigure_super+0x1d4/0x7cc fs/super.c:977
 vfs_fsconfig_locked+0x164/0x374 fs/fsopen.c:260
 __do_sys_fsconfig fs/fsopen.c:445 [inline]
 __se_sys_fsconfig fs/fsopen.c:320 [inline]
 __arm64_sys_fsconfig+0x640/0x790 fs/fsopen.c:320
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585

Crashes (20):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/07/21 18:31 linux-6.1.y 090666d3cc90 7c5de9c3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-linux-6-1-kasan-arm64 BUG: Bad page state in corrupted
2026/07/11 17:22 linux-6.1.y 090666d3cc90 d78ea535 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-linux-6-1-kasan-arm64 BUG: Bad page state in corrupted
2026/05/10 10:34 linux-6.1.y 128a674368bf 29233ece .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-linux-6-1-kasan-arm64 BUG: Bad page state in corrupted
2026/05/10 07:51 linux-6.1.y 128a674368bf 29233ece .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-linux-6-1-kasan-arm64 BUG: Bad page state in corrupted
2026/05/10 06:38 linux-6.1.y 128a674368bf 29233ece .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-linux-6-1-kasan-arm64 BUG: Bad page state in corrupted
2026/01/25 11:53 linux-6.1.y cd9b81672742 40acda8a .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-linux-6-1-kasan-arm64 BUG: Bad page state in corrupted
2026/01/25 10:13 linux-6.1.y cd9b81672742 40acda8a .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-linux-6-1-kasan-arm64 BUG: Bad page state in corrupted
2026/01/25 09:24 linux-6.1.y cd9b81672742 40acda8a .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-linux-6-1-kasan-arm64 BUG: Bad page state in corrupted
2026/01/25 01:14 linux-6.1.y cd9b81672742 40acda8a .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-linux-6-1-kasan-arm64 BUG: Bad page state in corrupted
2026/01/24 22:03 linux-6.1.y cd9b81672742 40acda8a .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-linux-6-1-kasan-arm64 BUG: Bad page state in corrupted
2026/01/24 21:53 linux-6.1.y cd9b81672742 40acda8a .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-linux-6-1-kasan-arm64 BUG: Bad page state in corrupted
2025/12/24 07:54 linux-6.1.y 50cbba13faa2 d6526ea3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-linux-6-1-kasan-arm64 BUG: Bad page state in corrupted
2025/11/12 03:49 linux-6.1.y f6e38ae624cf 4e1406b4 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-linux-6-1-kasan-arm64 BUG: Bad page state in corrupted
2025/10/05 08:10 linux-6.1.y 882efbdd9d34 49379ee0 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-linux-6-1-kasan-arm64 BUG: Bad page state in corrupted
2025/08/09 10:20 linux-6.1.y 3594f306da12 32a0e5ed .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-linux-6-1-kasan-arm64 BUG: Bad page state in corrupted
2025/06/25 21:09 linux-6.1.y 58485ff1a74f 26d77996 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-linux-6-1-kasan-arm64 BUG: Bad page state in corrupted
2025/06/25 20:43 linux-6.1.y 58485ff1a74f 26d77996 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-linux-6-1-kasan-arm64 BUG: Bad page state in corrupted
2025/03/04 19:16 linux-6.1.y 3a8358583626 c3901742 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-linux-6-1-kasan-arm64 BUG: Bad page state in corrupted
2024/12/24 13:34 linux-6.1.y 29f02ec58a94 444551c4 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 BUG: Bad page state in corrupted
2024/12/24 12:57 linux-6.1.y 29f02ec58a94 444551c4 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 BUG: Bad page state in corrupted
* Struck through repros no longer work on HEAD.