head: 05ffc00000000309 fffffdffc3e38001 0080000000000000 0000000100000000 head: ffffffff00000000 000000000000001b 00000000ffffffff 0000000000000200 page dumped because: VM_BUG_ON_FOLIO(!pvmw.pte) ------------[ cut here ]------------ kernel BUG at mm/rmap.c:1955! Internal error: Oops - BUG: 00000000f2000800 [#1] SMP Modules linked in: CPU: 1 UID: 0 PID: 7579 Comm: syz.1.17 Not tainted 6.16.0-rc1-syzkaller-g39dfc971e42d #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : try_to_unmap_one+0x2c50/0x2d3c mm/rmap.c:1955 lr : try_to_unmap_one+0x2c50/0x2d3c mm/rmap.c:1955 sp : ffff80009c5662c0 x29: ffff80009c566520 x28: 0000000000000038 x27: ffff0000c7896300 x26: fffffdffc3e38018 x25: fffffdffc3e38030 x24: dfff800000000000 x23: ffff0000f01bfa00 x22: ffff0000f01bfa20 x21: 0000000000000001 x20: fffffdffc3e38000 x19: 05ffc00000020849 x18: 00000000ffffffff x17: 0000000000000000 x16: ffff80008ae31308 x15: ffff700011ed61d4 x14: 1ffff00011ed61d4 x13: 0000000000000004 x12: ffffffffffffffff x11: ffff700011ed61d4 x10: 0000000000ff0100 x9 : ccafe84da09ea000 x8 : ccafe84da09ea000 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80009c5659d8 x4 : ffff80008f727060 x3 : ffff80008054db48 x2 : 0000000000000000 x1 : 0000000000000001 x0 : 000000000000002f Call trace: try_to_unmap_one+0x2c50/0x2d3c mm/rmap.c:1955 (P) rmap_walk_anon+0x47c/0x640 mm/rmap.c:2834 rmap_walk+0x128/0x1e8 mm/rmap.c:2939 try_to_unmap+0xc4/0x120 mm/rmap.c:2263 unmap_poisoned_folio+0x278/0x4a4 mm/memory-failure.c:1610 shrink_folio_list+0x628/0x43dc mm/vmscan.c:1141 reclaim_folio_list+0xe0/0x5d4 mm/vmscan.c:2232 reclaim_pages+0x420/0x544 mm/vmscan.c:2269 madvise_cold_or_pageout_pte_range+0x1d38/0x20d4 mm/madvise.c:439 walk_pmd_range mm/pagewalk.c:130 [inline] walk_pud_range mm/pagewalk.c:226 [inline] walk_p4d_range mm/pagewalk.c:264 [inline] walk_pgd_range+0xb4c/0x16b8 mm/pagewalk.c:305 __walk_page_range+0x13c/0x654 mm/pagewalk.c:412 walk_page_range_mm+0x4fc/0x7dc mm/pagewalk.c:505 walk_page_range+0x80/0x98 mm/pagewalk.c:584 madvise_pageout_page_range mm/madvise.c:622 [inline] madvise_pageout mm/madvise.c:649 [inline] madvise_vma_behavior mm/madvise.c:1278 [inline] madvise_walk_vmas mm/madvise.c:1539 [inline] madvise_do_behavior+0x18d4/0x2860 mm/madvise.c:1731 do_madvise+0x174/0x224 mm/madvise.c:1824 __do_sys_madvise mm/madvise.c:1833 [inline] __se_sys_madvise mm/madvise.c:1831 [inline] __arm64_sys_madvise+0xa4/0xc0 mm/madvise.c:1831 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x58/0x17c arch/arm64/kernel/entry-common.c:767 el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:786 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 Code: f9404be0 d00527c1 91028021 97fde863 (d4210000) ---[ end trace 0000000000000000 ]---