FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 ------------[ cut here ]------------ CPU: 1 PID: 44334 Comm: syz-executor.5 Not tainted 5.10.235 #1 WARNING: CPU: 0 PID: 44148 at arch/x86/mm/pat/memtype.c:1019 get_pat_info+0x216/0x270 arch/x86/mm/pat/memtype.c:1019 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x107/0x167 lib/dump_stack.c:118 fail_dump lib/fault-inject.c:52 [inline] should_fail.cold+0x5/0xa lib/fault-inject.c:146 Modules linked in: should_failslab+0x5/0x20 mm/slab_common.c:1200 slab_pre_alloc_hook mm/slab.h:515 [inline] slab_alloc_node mm/slub.c:2821 [inline] slab_alloc mm/slub.c:2904 [inline] kmem_cache_alloc+0x5b/0x310 mm/slub.c:2909 vm_area_dup+0x78/0x290 kernel/fork.c:356 CPU: 0 PID: 44148 Comm: syz-executor.1 Not tainted 5.10.235 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:get_pat_info+0x216/0x270 arch/x86/mm/pat/memtype.c:1019 Code: c1 ea 03 80 3c 02 00 75 71 49 89 1e eb 8e e8 e1 88 2e 00 0f 0b e9 97 fe ff ff 41 bc ea ff ff ff e9 77 ff ff ff e8 ca 88 2e 00 <0f> 0b 41 bc ea ff ff ff e9 65 ff ff ff 4c 89 ff e8 15 8d 5a 00 e9 dup_mmap kernel/fork.c:535 [inline] dup_mm kernel/fork.c:1380 [inline] copy_mm kernel/fork.c:1436 [inline] copy_process+0x291b/0x7800 kernel/fork.c:2126 RSP: 0018:ffff8880446df770 EFLAGS: 00010216 RAX: 00000000000249fa RBX: ffff8880454c7500 RCX: ffffc9000580b000 kernel_clone+0xe7/0x980 kernel/fork.c:2506 RDX: 0000000000040000 RSI: ffffffff81123696 RDI: 0000000000000007 RBP: ffff8880446df828 R08: 0000000000000000 R09: ffff8880446df6f8 __do_sys_clone+0xc8/0x110 kernel/fork.c:2623 R10: 0000000000000020 R11: 0000000000000001 R12: 0000000000000028 R13: 1ffff110088dbeee R14: 0000000000000000 R15: ffff8880454c7550 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7fd16660db19 FS: 00007f81e5a3a700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 RSP: 002b:00007fd163b83188 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007fd166720f60 RCX: 00007fd16660db19 CR2: 000056300af272d8 CR3: 0000000047a78000 CR4: 0000000000350ef0 RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000004000 RBP: 00007fd163b831d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffde777d1af R14: 00007fd163b83300 R15: 0000000000022000 Call Trace: untrack_pfn+0xdc/0x240 arch/x86/mm/pat/memtype.c:1121 unmap_single_vma+0x1bc/0x300 mm/memory.c:1499 unmap_vmas+0x16d/0x300 mm/memory.c:1552 exit_mmap+0x27f/0x4f0 mm/mmap.c:3253 __mmput kernel/fork.c:1101 [inline] mmput+0xca/0x340 kernel/fork.c:1122 dup_mm kernel/fork.c:1396 [inline] copy_mm kernel/fork.c:1436 [inline] copy_process+0x6ac9/0x7800 kernel/fork.c:2126 kernel_clone+0xe7/0x980 kernel/fork.c:2506 __do_sys_clone+0xc8/0x110 kernel/fork.c:2623 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f81e84c4b19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f81e5a3a188 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007f81e85d7f60 RCX: 00007f81e84c4b19 RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000004000 RBP: 00007f81e5a3a1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffee79a388f R14: 00007f81e5a3a300 R15: 0000000000022000 irq event stamp: 4047 hardirqs last enabled at (4059): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 hardirqs last disabled at (4074): [] console_unlock+0x839/0xb40 kernel/printk/printk.c:2482 softirqs last enabled at (2496): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (2423): [] asm_call_irq_on_stack+0x12/0x20 ---[ end trace 194b898bdcc808b7 ]--- loop7: detected capacity change from 0 to 16776704 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 44367 Comm: syz-executor.4 Tainted: G W 5.10.235 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x107/0x167 lib/dump_stack.c:118 fail_dump lib/fault-inject.c:52 [inline] should_fail.cold+0x5/0xa lib/fault-inject.c:146 should_failslab+0x5/0x20 mm/slab_common.c:1200 slab_pre_alloc_hook mm/slab.h:515 [inline] slab_alloc_node mm/slub.c:2821 [inline] slab_alloc mm/slub.c:2904 [inline] kmem_cache_alloc+0x5b/0x310 mm/slub.c:2909 mem_pool_alloc mm/kmemleak.c:423 [inline] create_object.isra.0+0x3a/0xa20 mm/kmemleak.c:578 kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] slab_post_alloc_hook mm/slab.h:534 [inline] slab_alloc_node mm/slub.c:2896 [inline] slab_alloc mm/slub.c:2904 [inline] kmem_cache_alloc+0x159/0x310 mm/slub.c:2909 vm_area_dup+0x78/0x290 kernel/fork.c:356 dup_mmap kernel/fork.c:535 [inline] dup_mm kernel/fork.c:1380 [inline] copy_mm kernel/fork.c:1436 [inline] copy_process+0x291b/0x7800 kernel/fork.c:2126 kernel_clone+0xe7/0x980 kernel/fork.c:2506 loop6: detected capacity change from 0 to 41948160 __do_sys_clone+0xc8/0x110 kernel/fork.c:2623 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f87f4e1cb19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f87f2392188 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007f87f4f2ff60 RCX: 00007f87f4e1cb19 RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000004000 RBP: 00007f87f23921d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffd2ec467ff R14: 00007f87f2392300 R15: 0000000000022000 EXT4-fs (loop7): mounted filesystem without journal. Opts: ,errors=continue ---------------- Code disassembly (best guess), 1 bytes skipped: 0: ff c3 inc %ebx 2: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1) 9: 00 00 00 c: 0f 1f 40 00 nopl 0x0(%rax) 10: 48 89 f8 mov %rdi,%rax 13: 48 89 f7 mov %rsi,%rdi 16: 48 89 d6 mov %rdx,%rsi 19: 48 89 ca mov %rcx,%rdx 1c: 4d 89 c2 mov %r8,%r10 1f: 4d 89 c8 mov %r9,%r8 22: 4c 8b 4c 24 08 mov 0x8(%rsp),%r9 27: 0f 05 syscall * 29: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax <-- trapping instruction 2f: 73 01 jae 0x32 31: c3 retq 32: 48 c7 c1 bc ff ff ff mov $0xffffffffffffffbc,%rcx 39: f7 d8 neg %eax 3b: 64 89 01 mov %eax,%fs:(%rcx) 3e: 48 rex.W