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BUG: Bad page map in process syz-executor pte:61006100610061 pmd:7a14b067 addr:00007ff49e7fd000 vm_flags:08100073 anon_vma:ffff88803093e110 mapping:0000000000000000 index:7ff49e7fd file:(null) fault:0x0 mmap:0x0 read_folio:0x0 CPU: 0 PID: 4255 Comm: syz-executor Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 Call Trace: <TASK> dump_stack_lvl+0x188/0x24e lib/dump_stack.c:106 print_bad_pte+0x54c/0x590 mm/memory.c:566 vm_normal_page+0x131/0x1d0 mm/memory.c:-1 change_pte_range mm/mprotect.c:131 [inline] change_pmd_range mm/mprotect.c:418 [inline] change_pud_range mm/mprotect.c:447 [inline] change_p4d_range mm/mprotect.c:468 [inline] change_protection_range mm/mprotect.c:492 [inline] change_protection+0x1175/0x38e0 mm/mprotect.c:514 change_prot_numa+0xff/0x190 mm/mempolicy.c:635 task_numa_work+0x5f5/0x8c0 kernel/sched/fair.c:3022 task_work_run+0x1d0/0x260 kernel/task_work.c:203 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:177 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:210 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline] syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:303 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7ff49e557997 Code: 48 89 fa 4c 89 df e8 a8 56 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff RSP: 002b:00007ffc38018100 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 RAX: 0000000000004520 RBX: 0000555570024500 RCX: 00007ff49e557997 RDX: 0000000000004520 RSI: 00007ff496dfbae0 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000004520 R13: 0000555570038e60 R14: 00007ffc380186a0 R15: 00007ff496dfbae0 </TASK> BUG: Bad page map in process syz-executor pte:61006100610061 pmd:7a14b067 addr:00007ff49e7fe000 vm_flags:08100073 anon_vma:ffff88803093e110 mapping:0000000000000000 index:7ff49e7fe file:(null) fault:0x0 mmap:0x0 read_folio:0x0 CPU: 0 PID: 4255 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 Call Trace: <TASK> dump_stack_lvl+0x188/0x24e lib/dump_stack.c:106 print_bad_pte+0x54c/0x590 mm/memory.c:566 vm_normal_page+0x131/0x1d0 mm/memory.c:-1 change_pte_range mm/mprotect.c:131 [inline] change_pmd_range mm/mprotect.c:418 [inline] change_pud_range mm/mprotect.c:447 [inline] change_p4d_range mm/mprotect.c:468 [inline] change_protection_range mm/mprotect.c:492 [inline] change_protection+0x1175/0x38e0 mm/mprotect.c:514 change_prot_numa+0xff/0x190 mm/mempolicy.c:635 task_numa_work+0x5f5/0x8c0 kernel/sched/fair.c:3022 task_work_run+0x1d0/0x260 kernel/task_work.c:203 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:177 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:210 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline] syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:303 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7ff49e557997 Code: 48 89 fa 4c 89 df e8 a8 56 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff RSP: 002b:00007ffc38018100 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 RAX: 0000000000004520 RBX: 0000555570024500 RCX: 00007ff49e557997 RDX: 0000000000004520 RSI: 00007ff496dfbae0 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000004520 R13: 0000555570038e60 R14: 00007ffc380186a0 R15: 00007ff496dfbae0 </TASK> BUG: Bad page map in process syz-executor pte:61006100610061 pmd:7a14b067 addr:00007ff49e7ff000 vm_flags:08100073 anon_vma:ffff88803093e110 mapping:0000000000000000 index:7ff49e7ff file:(null) fault:0x0 mmap:0x0 read_folio:0x0 CPU: 0 PID: 4255 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 Call Trace: <TASK> dump_stack_lvl+0x188/0x24e lib/dump_stack.c:106 print_bad_pte+0x54c/0x590 mm/memory.c:566 vm_normal_page+0x131/0x1d0 mm/memory.c:-1 change_pte_range mm/mprotect.c:131 [inline] change_pmd_range mm/mprotect.c:418 [inline] change_pud_range mm/mprotect.c:447 [inline] change_p4d_range mm/mprotect.c:468 [inline] change_protection_range mm/mprotect.c:492 [inline] change_protection+0x1175/0x38e0 mm/mprotect.c:514 change_prot_numa+0xff/0x190 mm/mempolicy.c:635 task_numa_work+0x5f5/0x8c0 kernel/sched/fair.c:3022 task_work_run+0x1d0/0x260 kernel/task_work.c:203 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:177 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:210 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline] syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:303 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7ff49e557997 Code: 48 89 fa 4c 89 df e8 a8 56 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff RSP: 002b:00007ffc38018100 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 RAX: 0000000000004520 RBX: 0000555570024500 RCX: 00007ff49e557997 RDX: 0000000000004520 RSI: 00007ff496dfbae0 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000004520 R13: 0000555570038e60 R14: 00007ffc380186a0 R15: 00007ff496dfbae0 </TASK>
| Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026/04/17 09:12 | linux-6.1.y | 8e8fc038cad5 | de0a551d | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | BUG: Bad page map |