RDX: 0000000000000000 RSI: 00000000000058ab RDI: 0000000000000003 RBP: 00007fa9ca4191d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffdd3bc8e7f R14: 00007fa9ca419300 R15: 0000000000022000 general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] SMP KASAN NOPTI FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] CPU: 1 PID: 9507 Comm: syz-executor.4 Not tainted 5.10.175 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 CPU: 0 PID: 9511 Comm: syz-executor.7 Not tainted 5.10.175 #1 RIP: 0010:io_arm_poll_handler io_uring/io_uring.c:5795 [inline] RIP: 0010:__io_queue_sqe+0x69f/0xa60 io_uring/io_uring.c:7043 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Call Trace: Code: 0f 85 24 03 00 00 48 8b 3d 66 86 da 02 ba 48 00 00 00 be 20 0a 00 00 e8 0f cd 7d ff 48 8d 78 14 49 89 c5 48 89 f8 48 c1 e8 03 <42> 0f b6 14 20 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x107/0x167 lib/dump_stack.c:118 RSP: 0018:ffff8880208f7b28 EFLAGS: 00010213 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:1193 RAX: 0000000000000002 RBX: 1ffff1100411ef6b RCX: 0000000000000000 slab_pre_alloc_hook mm/slab.h:515 [inline] slab_alloc_node mm/slub.c:2821 [inline] slab_alloc mm/slub.c:2904 [inline] __kmalloc_track_caller+0x79/0x310 mm/slub.c:4465 RDX: 0000000000000048 RSI: 0000000000000000 RDI: 0000000000000014 kstrdup+0x36/0x70 mm/util.c:60 RBP: ffff88801de99a00 R08: 0000000000000000 R09: ffffffff8509e133 trace_probe_init+0x284/0x4e0 kernel/trace/trace_probe.c:1020 R10: fffffbfff0a13c26 R11: 0000000000000001 R12: dffffc0000000000 alloc_trace_uprobe+0x63/0x2b0 kernel/trace/trace_uprobe.c:347 R13: 0000000000000000 R14: ffff88801de99a58 R15: ffff88801de99a48 create_local_trace_uprobe+0x101/0x4e0 kernel/trace/trace_uprobe.c:1606 FS: 00007fa9ca419700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc6b2f9f018 CR3: 0000000049a6e000 CR4: 0000000000350ee0 perf_uprobe_init+0x136/0x210 kernel/trace/trace_event_perf.c:323 Call Trace: perf_uprobe_event_init+0xff/0x1d0 kernel/events/core.c:9724 perf_try_init_event+0x130/0x570 kernel/events/core.c:11046 io_queue_sqe io_uring/io_uring.c:7071 [inline] io_submit_sqe io_uring/io_uring.c:7248 [inline] io_submit_sqes+0x4484/0x86e0 io_uring/io_uring.c:7354 perf_init_event kernel/events/core.c:11098 [inline] perf_event_alloc.part.0+0xd96/0x2b70 kernel/events/core.c:11376 perf_event_alloc kernel/events/core.c:11772 [inline] __do_sys_perf_event_open+0x580/0x2d50 kernel/events/core.c:11870 __do_sys_io_uring_enter+0x6b5/0x17b0 io_uring/io_uring.c:10083 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xc6 RIP: 0033:0x7f17fb53ab19 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:00007f17f8ab0188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007f17fb64df60 RCX: 00007f17fb53ab19 RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 0000000020000040 RBP: 00007f17f8ab01d0 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffc2dcbf49f R14: 00007f17f8ab0300 R15: 0000000000022000 trace_uprobe: Failed to allocate trace_uprobe.(-12) do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xc6 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=44392 sclass=netlink_route_socket pid=9512 comm=syz-executor.1 RIP: 0033:0x7fa9ccea3b19 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 FAT-fs (loop2): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) RSP: 002b:00007fa9ca419188 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa RAX: ffffffffffffffda RBX: 00007fa9ccfb6f60 RCX: 00007fa9ccea3b19 RDX: 0000000000000000 RSI: 00000000000058ab RDI: 0000000000000003 RBP: 00007fa9ca4191d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffdd3bc8e7f R14: 00007fa9ca419300 R15: 0000000000022000 Modules linked in: ---[ end trace 80be3399753f2a27 ]--- RIP: 0010:io_arm_poll_handler io_uring/io_uring.c:5795 [inline] RIP: 0010:__io_queue_sqe+0x69f/0xa60 io_uring/io_uring.c:7043 Code: 0f 85 24 03 00 00 48 8b 3d 66 86 da 02 ba 48 00 00 00 be 20 0a 00 00 e8 0f cd 7d ff 48 8d 78 14 49 89 c5 48 89 f8 48 c1 e8 03 <42> 0f b6 14 20 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 RSP: 0018:ffff8880208f7b28 EFLAGS: 00010213 RAX: 0000000000000002 RBX: 1ffff1100411ef6b RCX: 0000000000000000 RDX: 0000000000000048 RSI: 0000000000000000 RDI: 0000000000000014 RBP: ffff88801de99a00 R08: 0000000000000000 R09: ffffffff8509e133 R10: fffffbfff0a13c26 R11: 0000000000000001 R12: dffffc0000000000 R13: 0000000000000000 R14: ffff88801de99a58 R15: ffff88801de99a48 FS: 00007fa9ca419700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc6b2f9f018 CR3: 0000000049a6e000 CR4: 0000000000350ee0 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=44392 sclass=netlink_route_socket pid=9517 comm=syz-executor.1 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=44392 sclass=netlink_route_socket pid=9516 comm=syz-executor.5 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 9524 Comm: syz-executor.0 Tainted: G D 5.10.175 #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:1193 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/0x360 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] kmem_cache_alloc_bulk+0x168/0x320 mm/slub.c:3343 io_alloc_req io_uring/io_uring.c:1981 [inline] io_submit_sqes+0x7099/0x86e0 io_uring/io_uring.c:7341 __do_sys_io_uring_enter+0x6b5/0x17b0 io_uring/io_uring.c:10083 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xc6 RIP: 0033:0x7fc1ef757b19 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:00007fc1ecccd188 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa RAX: ffffffffffffffda RBX: 00007fc1ef86af60 RCX: 00007fc1ef757b19 RDX: 0000000000000000 RSI: 0000000000000045 RDI: 0000000000000003 RBP: 00007fc1ecccd1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffd182d468f R14: 00007fc1ecccd300 R15: 0000000000022000 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=44392 sclass=netlink_route_socket pid=9526 comm=syz-executor.1 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=44392 sclass=netlink_route_socket pid=9528 comm=syz-executor.5 FAT-fs (loop2): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) ---------------- Code disassembly (best guess): 0: 0f 85 24 03 00 00 jne 0x32a 6: 48 8b 3d 66 86 da 02 mov 0x2da8666(%rip),%rdi # 0x2da8673 d: ba 48 00 00 00 mov $0x48,%edx 12: be 20 0a 00 00 mov $0xa20,%esi 17: e8 0f cd 7d ff callq 0xff7dcd2b 1c: 48 8d 78 14 lea 0x14(%rax),%rdi 20: 49 89 c5 mov %rax,%r13 23: 48 89 f8 mov %rdi,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 0f b6 14 20 movzbl (%rax,%r12,1),%edx <-- trapping instruction 2f: 48 89 f8 mov %rdi,%rax 32: 83 e0 07 and $0x7,%eax 35: 83 c0 03 add $0x3,%eax 38: 38 d0 cmp %dl,%al 3a: 7c 08 jl 0x44 3c: 84 d2 test %dl,%dl 3e: 0f .byte 0xf 3f: 85 .byte 0x85