RDX: 0000000020ff9000 RSI: 0000000020000440 RDI: 0000000000007d30 RBP: 0000000020000440 R08: 0000000020000500 R09: 0000000020000500 R10: 00000000200004c0 R11: 0000000000000202 R12: 0000000020000500 R13: 0000000020ff9000 R14: 00000000200004c0 R15: 0000000020ffe000 general protection fault, probably for non-canonical address 0xdffffc0000000029: 0000 [#1] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000148-0x000000000000014f] CPU: 0 PID: 21382 Comm: syz-executor.1 Not tainted 5.10.45 #1 FAULT_INJECTION: forcing a failure. name fail_usercopy, interval 1, probability 0, space 0, times 0 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 RIP: 0010:io_sq_offload_start fs/io_uring.c:8001 [inline] RIP: 0010:io_disable_sqo_submit+0x1a9/0x220 fs/io_uring.c:8723 Code: 03 80 3c 02 00 0f 85 86 00 00 00 48 8b ab e0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d bd 48 01 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 5a 48 8b ad 48 01 00 00 48 85 ed 0f 84 d1 fe ff ff CPU: 1 PID: 21389 Comm: syz-executor.6 Not tainted 5.10.45 #1 RSP: 0018:ffff8880258bfd70 EFLAGS: 00010212 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 Call Trace: RAX: dffffc0000000000 RBX: ffff88801fb9c000 RCX: ffffc90000833000 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x107/0x163 lib/dump_stack.c:118 RDX: 0000000000000029 RSI: ffffffff81837da8 RDI: 0000000000000148 fail_dump lib/fault-inject.c:52 [inline] should_fail.cold+0x5/0xa lib/fault-inject.c:146 RBP: 0000000000000000 R08: 0000000000000000 R09: ffff88801fb9c3c7 _copy_to_user+0x2e/0x180 lib/usercopy.c:29 R10: 0000000000000000 R11: 0000000000000001 R12: ffff88801fb9c3c0 copy_to_user include/linux/uaccess.h:200 [inline] simple_read_from_buffer+0xcc/0x160 fs/libfs.c:729 R13: 0000000000000040 R14: dffffc0000000000 R15: ffff88801fb9c000 proc_fail_nth_read+0x194/0x220 fs/proc/base.c:1423 FS: 00007fdb4a7cf700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000568000 CR3: 00000000229ee000 CR4: 0000000000350ef0 Call Trace: vfs_read+0x228/0x580 fs/read_write.c:494 io_uring_create fs/io_uring.c:9513 [inline] io_uring_setup+0x15c8/0x2fe0 fs/io_uring.c:9541 ksys_read+0x12d/0x250 fs/read_write.c:634 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x41935c do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 fc ff ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 2f fd ff ff 48 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RSP: 002b:00007f40df719170 EFLAGS: 00000246 RIP: 0033:0x466609 ORIG_RAX: 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 RAX: ffffffffffffffda RBX: ffffffffffffffff RCX: 000000000041935c RSP: 002b:00007fdb4a7cf188 EFLAGS: 00000246 RDX: 000000000000000f RSI: 00007f40df7191e0 RDI: 0000000000000003 ORIG_RAX: 00000000000001a9 RBP: 00007f40df7191d0 R08: 0000000000000000 R09: 0000000000000000 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 0000000000466609 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 RDX: 0000000000000000 RSI: 00000000200003c0 RDI: 00000000000059d7 R13: 00007ffe1658d96f R14: 00007f40df719300 R15: 0000000000022000 RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffe280ebdbf R14: 00007fdb4a7cf300 R15: 0000000000022000 Modules linked in: ---[ end trace 079058bf37e42479 ]--- RIP: 0010:io_sq_offload_start fs/io_uring.c:8001 [inline] RIP: 0010:io_disable_sqo_submit+0x1a9/0x220 fs/io_uring.c:8723 Code: 03 80 3c 02 00 0f 85 86 00 00 00 48 8b ab e0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d bd 48 01 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 5a 48 8b ad 48 01 00 00 48 85 ed 0f 84 d1 fe ff ff RSP: 0018:ffff8880258bfd70 EFLAGS: 00010212 RAX: dffffc0000000000 RBX: ffff88801fb9c000 RCX: ffffc90000833000 RDX: 0000000000000029 RSI: ffffffff81837da8 RDI: 0000000000000148 RBP: 0000000000000000 R08: 0000000000000000 R09: ffff88801fb9c3c7 R10: 0000000000000000 R11: 0000000000000001 R12: ffff88801fb9c3c0 R13: 0000000000000040 R14: dffffc0000000000 R15: ffff88801fb9c000 FS: 00007fdb4a7cf700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000568000 CR3: 00000000229ee000 CR4: 0000000000350ef0 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 21413 Comm: syz-executor.2 Tainted: G D 5.10.45 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x107/0x163 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+0x5/0x10 mm/slab_common.c:1194 slab_pre_alloc_hook mm/slab.h:516 [inline] slab_alloc_node mm/slub.c:2813 [inline] slab_alloc mm/slub.c:2896 [inline] kmem_cache_alloc+0x5b/0x350 mm/slub.c:2901 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:535 [inline] slab_alloc_node mm/slub.c:2888 [inline] slab_alloc mm/slub.c:2896 [inline] kmem_cache_alloc_trace+0x151/0x360 mm/slub.c:2913 kmalloc include/linux/slab.h:552 [inline] kzalloc include/linux/slab.h:664 [inline] io_wq_create+0xb4/0xa60 fs/io-wq.c:1089 io_init_wq_offload fs/io_uring.c:7856 [inline] io_sq_offload_create fs/io_uring.c:7987 [inline] io_uring_create fs/io_uring.c:9457 [inline] io_uring_setup+0x1885/0x2fe0 fs/io_uring.c:9541 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x466609 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:00007f131d9c3108 EFLAGS: 00000202 ORIG_RAX: 00000000000001a9 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 0000000000466609 RDX: 0000000020ff9000 RSI: 0000000020000440 RDI: 0000000000007d30 RBP: 0000000020000440 R08: 0000000020000500 R09: 0000000020000500 R10: 00000000200004c0 R11: 0000000000000202 R12: 0000000020000500 R13: 0000000020ff9000 R14: 00000000200004c0 R15: 0000000020ffe000 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 21433 Comm: syz-executor.7 Tainted: G D 5.10.45 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x107/0x163 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+0x5/0x10 mm/slab_common.c:1194 slab_pre_alloc_hook mm/slab.h:516 [inline] slab_alloc_node mm/slub.c:2813 [inline] slab_alloc mm/slub.c:2896 [inline] kmem_cache_alloc+0x5b/0x350 mm/slub.c:2901 mem_pool_alloc mm/kmemleak.c:423 [inline] create_object.isra.0+0x3a/0xa20 mm/kmemleak.c:578 kmemleak_alloc_percpu+0xa0/0x100 mm/kmemleak.c:919 pcpu_alloc+0x4de/0x12e0 mm/percpu.c:1842 percpu_ref_init+0x31/0x390 lib/percpu-refcount.c:71 io_ring_ctx_alloc fs/io_uring.c:1203 [inline] io_uring_create fs/io_uring.c:9398 [inline] io_uring_setup+0x665/0x2fe0 fs/io_uring.c:9541 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x466609 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:00007f368dd49108 EFLAGS: 00000202 ORIG_RAX: 00000000000001a9 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 0000000000466609 RDX: 0000000020ff9000 RSI: 0000000020000440 RDI: 0000000000007d30 RBP: 0000000020000440 R08: 0000000020000500 R09: 0000000020000500 R10: 00000000200004c0 R11: 0000000000000202 R12: 0000000020000500 R13: 0000000020ff9000 R14: 00000000200004c0 R15: 0000000020ffe000