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	553d	698d	0/2	auto-obsoleted due to no activity on 2025/03/04 10:23
upstream	BUG: Bad page map (9) mm	-1				1	175d	171d	0/29	auto-obsoleted due to no activity on 2026/03/17 01:28
android-5-10	BUG: Bad page map	-1				1	1191d	1191d	0/2	auto-obsoleted due to no activity on 2023/06/05 15:46
linux-4.19	BUG: Bad page map (3)	-1				1	1422d	1422d	0/1	auto-obsoleted due to no activity on 2022/11/15 21:40
upstream	BUG: Bad page map (5) mm	19	C			35	1243d	1501d	22/29	fixed on 2023/02/24 13:50
android-5-15	BUG: Bad page map	-1				1	705d	705d	0/2	auto-obsoleted due to no activity on 2024/10/03 11:06
android-6-1	BUG: Bad page map	-1				1	70d	70d	0/2	premoderation: reported on 2026/04/01 02:45
linux-4.19	BUG: Bad page map (2)	-1				10	1609d	1789d	0/1	auto-closed as invalid on 2022/05/13 11:22
android-54	BUG: Bad page map (3)	-1				10	734d	850d	0/2	auto-obsoleted due to no activity on 2024/09/04 10:38
upstream	BUG: Bad page map (2) mm	-1	syz			127	2835d	2891d	0/29	closed as invalid on 2018/09/05 12:51
upstream	BUG: Bad page map (8) mm	-1	C	done	done	10	508d	691d	0/29	auto-obsoleted due to no activity on 2025/04/27 22:16
android-5-10	BUG: Bad page map (2)	-1				1	972d	972d	0/2	auto-obsoleted due to no activity on 2024/01/10 02:50
upstream	BUG: Bad page map mm	-1				1	2894d	2894d	0/29	closed as invalid on 2018/07/08 13:28
upstream	BUG: Bad page map (3) kernel	-1				4	2704d	2830d	0/29	auto-closed as invalid on 2019/07/13 00:02
linux-4.19	BUG: Bad page map	-1				2	2106d	2164d	0/1	auto-closed as invalid on 2021/01/01 08:20
upstream	BUG: Bad page map (7) mm	-1	C	done		19	983d	1005d	25/29	fixed on 2023/12/21 03:45
android-54	BUG: Bad page map (2)	-1				7	972d	1090d	0/2	auto-obsoleted due to no activity on 2024/01/10 18:32
linux-6.1	BUG: Bad page map	-1				1	54d	54d	0/3	upstream: reported on 2026/04/17 09:12
upstream	BUG: Bad page map (4) mm	-1				39	1650d	2287d	0/29	auto-closed as invalid on 2022/04/02 04:25
linux-4.14	BUG: Bad page map	-1				1	2152d	2152d	0/1	auto-closed as invalid on 2020/11/16 16:05
android-54	BUG: Bad page map (4)	-1				18	391d	491d	0/2	auto-obsoleted due to no activity on 2025/08/04 13:44
upstream	BUG: Bad page map (6) mm	-1				1	1157d	1153d	0/29	auto-obsoleted due to no activity on 2023/07/09 13:20

BUG: Bad page map in process syz-executor.3 pte:ffff8881c4d1f1c0 pmd:1e5467067 addr:00007f216a239000 vm_flags:100400fb anon_vma:0000000000000000 mapping:ffff8881f58462c8 index:1a3 file:kcov fault:0x0 mmap:kcov_mmap readpage:0x0 CPU: 1 PID: 12065 Comm: syz-executor.3 Not tainted 5.4.197-syzkaller-00012-g27e532874a0e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x18e/0x1d5 lib/dump_stack.c:118 print_bad_pte+0x519/0x540 mm/memory.c:559 vm_normal_page+0x135/0x1d0 mm/memory.c:648 zap_pte_range+0x2d3/0x1c10 mm/memory.c:1077 zap_pmd_range mm/memory.c:1221 [inline] zap_pud_range mm/memory.c:1250 [inline] zap_p4d_range mm/memory.c:1271 [inline] unmap_page_range+0x35e/0x450 mm/memory.c:1292 unmap_single_vma mm/memory.c:1337 [inline] unmap_vmas+0x306/0x440 mm/memory.c:1369 exit_mmap+0x286/0x4f0 mm/mmap.c:3166 __mmput+0x34/0x240 kernel/fork.c:1090 exit_mm kernel/exit.c:489 [inline] do_exit+0xb40/0x2b40 kernel/exit.c:799 do_group_exit+0x136/0x300 kernel/exit.c:910 get_signal+0xd99/0x13f0 kernel/signal.c:2735 do_signal+0x3b/0x540 arch/x86/kernel/signal.c:809 exit_to_usermode_loop+0xdd/0x1d0 arch/x86/entry/common.c:159 prepare_exit_to_usermode+0x17c/0x1d0 arch/x86/entry/common.c:194 retint_user+0x8/0x8 RIP: 0033:0x7f216ad1f281 Code: Bad RIP value. RSP: 002b:00002a452cb9d000 EFLAGS: 00010217 RAX: 0000000000000000 RBX: 00007f216ae32050 RCX: 00007f216ad1f279 RDX: 0000000000000000 RSI: 00002a452cb9d000 RDI: 0000000050000000 RBP: 00007f216ad79189 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 00007ffd24d8040f R14: 00007f2169e74300 R15: 0000000000022000 BUG: Bad rss-counter state mm:ffff8881e3064000 type:MM_FILEPAGES val:1