Unable to handle kernel paging request at virtual address fef000000491f000 Mem abort info: ESR = 0x0000000096000047 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x07: level 3 translation fault Data abort info: ISV = 0, ISS = 0x00000047, ISS2 = 0x00000000 CM = 0, WnR = 1, TnD = 0, TagAccess = 0 GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 swapper pgtable: 4k pages, 52-bit VAs, pgdp=0000000042731000 [fef000000491f000] pgd=18000000bfdff003, p4d=18000000bfdfe003, pud=18000000bfdfd003, pmd=18000000bfde9003, pte=006800004491f406 Internal error: Oops: 0000000096000047 [#1] PREEMPT SMP Modules linked in: CPU: 0 UID: 0 PID: 4235 Comm: syz-executor.0 Not tainted 6.11.0-rc4-syzkaller-g872cf28b8df9 #0 Hardware name: linux,dummy-virt (DT) pstate: 21400009 (nzCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : __stg_post arch/arm64/include/asm/mte-kasan.h:120 [inline] pc : mte_set_mem_tag_range arch/arm64/include/asm/mte-kasan.h:196 [inline] pc : kasan_poison.constprop.0+0x80/0x104 mm/kasan/kasan.h:478 lr : __kasan_poison_pages+0x50/0x80 mm/kasan/common.c:141 sp : ffff800089b93b50 x29: ffff800089b93b50 x28: 0000000000000000 x27: 0000000000100dc2 x26: 0000000000100cc2 x25: 0000000000000000 x24: f5f0000004cae8f0 x23: 00000000000000fc x22: 0000000040000000 x21: 0000000000000000 x20: 0000000000000000 x19: ffffc1ffc01247c0 x18: 0000000000000001 x17: 0000000000000000 x16: 1f3e00000195d021 x15: 0000000000000001 x14: 0000000000000002 x13: 0000000000000000 x12: 000000000007002f x11: 0000000000000000 x10: ffff800081ef8e88 x9 : 00000000000000fc x8 : 0000000000000038 x7 : 0000000000000000 x6 : fef0000004920000 x5 : fef000000491f03f x4 : 0000000000000040 x3 : fef0000004920000 x2 : 0000000000000000 x1 : 0000000000001000 x0 : fef000000491f000 Call trace: mte_set_mem_tag_range arch/arm64/include/asm/mte-kasan.h:196 [inline] kasan_poison.constprop.0+0x80/0x104 mm/kasan/kasan.h:478 kasan_poison_pages include/linux/kasan.h:114 [inline] free_pages_prepare mm/page_alloc.c:1116 [inline] free_unref_page+0x10c/0x488 mm/page_alloc.c:2612 __folio_put+0xd4/0x118 mm/swap.c:128 folio_put include/linux/mm.h:1486 [inline] secretmem_fault+0x1e8/0x23c mm/secretmem.c:87 __do_fault+0x3c/0x218 mm/memory.c:4655 do_read_fault mm/memory.c:5061 [inline] do_fault mm/memory.c:5191 [inline] do_pte_missing mm/memory.c:3947 [inline] handle_pte_fault mm/memory.c:5521 [inline] __handle_mm_fault+0xdb4/0x1af4 mm/memory.c:5664 handle_mm_fault+0x64/0x218 mm/memory.c:5832 do_page_fault+0x16c/0x48c arch/arm64/mm/fault.c:613 do_translation_fault+0xac/0xbc arch/arm64/mm/fault.c:690 do_mem_abort+0x44/0x94 arch/arm64/mm/fault.c:826 el0_da+0x78/0xa8 arch/arm64/kernel/entry-common.c:580 el0t_64_sync_handler+0xb8/0x12c arch/arm64/kernel/entry-common.c:733 el0t_64_sync+0x19c/0x1a0 arch/arm64/kernel/entry.S:598 Code: b5000247 eb04043f 54000203 d503201f (d9201400) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: b5000247 cbnz x7, 0x48 4: eb04043f cmp x1, x4, lsl #1 8: 54000203 b.cc 0x48 // b.lo, b.ul, b.last c: d503201f nop * 10: d9201400 stg x0, [x0], #16 <-- trapping instruction