BUG: Bad page map

Kernel	Title	Rank 🛈	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
android-5-10	BUG: Bad page map (3)	-1				3	622d	767d	0/2	auto-obsoleted due to no activity on 2025/03/04 10:23
upstream	BUG: Bad page map (9) mm	-1				1	244d	240d	0/29	auto-obsoleted due to no activity on 2026/03/17 01:28
android-5-10	BUG: Bad page map	-1				1	1259d	1259d	0/2	auto-obsoleted due to no activity on 2023/06/05 15:46
linux-4.19	BUG: Bad page map (3)	-1				1	1491d	1491d	0/1	auto-obsoleted due to no activity on 2022/11/15 21:40
upstream	BUG: Bad page map (5) mm	19	syz, C			35	1312d	1570d	22/29	fixed on 2023/02/24 13:50
android-5-15	BUG: Bad page map	-1				1	773d	773d	0/2	auto-obsoleted due to no activity on 2024/10/03 11:06
linux-4.19	BUG: Bad page map (2)	-1				10	1677d	1858d	0/1	auto-closed as invalid on 2022/05/13 11:22
android-54	BUG: Bad page map (3)	-1				10	803d	919d	0/2	auto-obsoleted due to no activity on 2024/09/04 10:38
upstream	BUG: Bad page map (2) mm	-1	syz			127	2903d	2959d	0/29	closed as invalid on 2018/09/05 12:51
upstream	BUG: Bad page map (8) mm	-1	syz, C	done	done	10	577d	760d	0/29	auto-obsoleted due to no activity on 2025/04/27 22:16
android-5-10	BUG: Bad page map (2)	-1				1	1041d	1041d	0/2	auto-obsoleted due to no activity on 2024/01/10 02:50
upstream	BUG: Bad page map mm	-1				1	2962d	2962d	0/29	closed as invalid on 2018/07/08 13:28
upstream	BUG: Bad page map (3) kernel	-1				4	2773d	2899d	0/29	auto-closed as invalid on 2019/07/13 00:02
linux-4.19	BUG: Bad page map	-1				2	2175d	2233d	0/1	auto-closed as invalid on 2021/01/01 08:20
upstream	BUG: Bad page map (7) mm	-1	syz, C	done		19	1051d	1073d	25/29	fixed on 2023/12/21 03:45
android-54	BUG: Bad page map (2)	-1				7	1040d	1158d	0/2	auto-obsoleted due to no activity on 2024/01/10 18:32
linux-6.1	BUG: Bad page map	-1				1	123d	123d	0/3	auto-obsoleted due to no activity on 2026/07/26 09:12
upstream	BUG: Bad page map (4) mm	-1				39	1719d	2355d	0/29	auto-closed as invalid on 2022/04/02 04:25
linux-4.14	BUG: Bad page map	-1				1	2220d	2220d	0/1	auto-closed as invalid on 2020/11/16 16:05
android-54	BUG: Bad page map (4)	-1				18	460d	560d	0/2	auto-obsoleted due to no activity on 2025/08/04 13:44
upstream	BUG: Bad page map (6) mm	-1				1	1225d	1221d	0/29	auto-obsoleted due to no activity on 2023/07/09 13:20
android-54	BUG: Bad page map	-1				1	1454d	1454d	0/2	auto-obsoleted due to no activity on 2022/12/23 04:05

get_swap_device: Bad swap offset entry 3ffffff7fffff BUG: Bad page map in process syz.3.1699 pte:100000000 pmd:11c884067 addr:0000200000201000 vm_flags:00100077 anon_vma:ffff8881145c2450 mapping:0000000000000000 index:200000201 file:(null) fault:0x0 mmap:0x0 read_folio:0x0 CPU: 0 PID: 5402 Comm: syz.3.1699 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 Call Trace: <TASK> __dump_stack+0x21/0x24 lib/dump_stack.c:88 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106 dump_stack+0x15/0x24 lib/dump_stack.c:113 print_bad_pte+0x57b/0x590 mm/memory.c:585 zap_pte_range mm/memory.c:1511 [inline] zap_pmd_range mm/memory.c:1599 [inline] zap_pud_range mm/memory.c:1628 [inline] zap_p4d_range mm/memory.c:1649 [inline] unmap_page_range+0x201c/0x2330 mm/memory.c:1670 unmap_single_vma mm/memory.c:1716 [inline] unmap_vmas+0x34c/0x480 mm/memory.c:1756 exit_mmap+0x29b/0xc10 mm/mmap.c:3371 __mmput+0x93/0x360 kernel/fork.c:1312 mmput+0x4b/0x150 kernel/fork.c:1336 exit_mm kernel/exit.c:568 [inline] do_exit+0x994/0x2660 kernel/exit.c:873 do_group_exit+0x210/0x2d0 kernel/exit.c:1028 get_signal+0x13b5/0x1520 kernel/signal.c:2891 arch_do_signal_or_restart+0xd1/0x1140 arch/x86/kernel/signal.c:871 exit_to_user_mode_loop+0x7a/0xb0 kernel/entry/common.c:174 exit_to_user_mode_prepare+0x87/0xd0 kernel/entry/common.c:210 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline] syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:303 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f1055f9c819 Code: Unable to access opcode bytes at 0x7f1055f9c7ef. RSP: 002b:00007f10549d60e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f1056216098 RCX: 00007f1055f9c819 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f1056216098 RBP: 00007f1056216090 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f1056216128 R14: 00007ffc958ba690 R15: 00007ffc958ba778 </TASK> BUG: Bad rss-counter state mm:ffff88810fb2d900 type:MM_ANONPAGES val:1 BUG: Bad rss-counter state mm:ffff88810fb2d900 type:MM_SWAPENTS val:-1