FAULT_INJECTION: forcing a failure. name fail_usercopy, interval 1, probability 0, space 0, times 1 CPU: 1 PID: 7418 Comm: syz-executor.0 Not tainted 6.0.0-rc1-next-20220822 #1 BUG: sleeping function called from invalid context at kernel/locking/rwsem.c:1521 in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 7418, name: syz-executor.0 preempt_count: 0, expected: 0 RCU nest depth: 0, expected: 0 no locks held by syz-executor.0/7418. irq event stamp: 1552 hardirqs last enabled at (1551): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (1552): [] dump_stack_lvl+0x2e/0xb3 softirqs last enabled at (1546): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (1517): [] __irq_exit_rcu+0x11b/0x180 CPU: 1 PID: 7418 Comm: syz-executor.0 Not tainted 6.0.0-rc1-next-20220822 #1 sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 40 00 blk_print_req_error: 15 callbacks suppressed I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 syz-executor.0[7418] cmdline: /syz-executor.0 exec Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 Call Trace: sr 1:0:0:0: [sr0] tag#0 unaligned transfer dump_stack_lvl+0x8b/0xb3 I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 buffer_io_error: 14 callbacks suppressed Buffer I/O error on dev sr0, logical block 0, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer __might_resched.cold+0x222/0x26b I/O error, dev sr0, sector 1 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 1, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer down_read_killable+0x75/0x490 I/O error, dev sr0, sector 2 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 2, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer __access_remote_vm+0xac/0x6f0 I/O error, dev sr0, sector 3 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 3, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 4 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 4, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer get_mm_cmdline.part.0+0x214/0x600 I/O error, dev sr0, sector 5 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 5, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 6 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 6, async page read get_task_cmdline_kernel+0x1e9/0x230 sr 1:0:0:0: [sr0] tag#0 unaligned transfer dump_stack_print_cmdline.part.0+0x82/0x150 I/O error, dev sr0, sector 7 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 7, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 0, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer dump_stack_print_info+0x185/0x190 Buffer I/O error on dev sr0, logical block 1, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer dump_stack_lvl+0x7f/0xb3 sr 1:0:0:0: [sr0] tag#0 unaligned transfer should_fail.cold+0x5/0xa sr 1:0:0:0: [sr0] tag#0 unaligned transfer _copy_from_user+0x2a/0x170 sr 1:0:0:0: [sr0] tag#0 unaligned transfer iovec_from_user+0x23a/0x3c0 sr 1:0:0:0: [sr0] tag#0 unaligned transfer __import_iovec+0x64/0x600 sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer import_iovec+0x83/0xb0 sr 1:0:0:0: [sr0] tag#0 unaligned transfer vfs_readv+0xbb/0x160 sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer __x64_sys_preadv+0x22f/0x310 sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer do_syscall_64+0x3b/0x90 sr 1:0:0:0: [sr0] tag#0 unaligned transfer entry_SYSCALL_64_after_hwframe+0x63/0xcd sr 1:0:0:0: [sr0] tag#0 unaligned transfer RIP: 0033:0x7f5ce4391b19 sr 1:0:0:0: [sr0] tag#0 unaligned transfer 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 sr 1:0:0:0: [sr0] tag#0 unaligned transfer RSP: 002b:00007f5ce1907188 EFLAGS: 00000246 sr 1:0:0:0: [sr0] tag#0 unaligned transfer ORIG_RAX: 0000000000000127 sr 1:0:0:0: [sr0] tag#0 unaligned transfer RAX: ffffffffffffffda RBX: 00007f5ce44a4f60 RCX: 00007f5ce4391b19 sr 1:0:0:0: [sr0] tag#0 unaligned transfer RDX: 0000000000000001 RSI: 00000000200011c0 RDI: 0000000000000006 sr 1:0:0:0: [sr0] tag#0 unaligned transfer RBP: 00007f5ce19071d0 R08: 0000000000000000 R09: 0000000000000000 sr 1:0:0:0: [sr0] tag#0 unaligned transfer R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer R13: 00007fff78478f0f R14: 00007f5ce1907300 R15: 0000000000022000 sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer syz-executor.0[7418] cmdline: /syz-executor.0 exec 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_lvl+0x8b/0xb3 sr 1:0:0:0: [sr0] tag#0 unaligned transfer should_fail.cold+0x5/0xa _copy_from_user+0x2a/0x170 iovec_from_user+0x23a/0x3c0 __import_iovec+0x64/0x600 import_iovec+0x83/0xb0 vfs_readv+0xbb/0x160 sr 1:0:0:0: [sr0] tag#0 unaligned transfer __x64_sys_preadv+0x22f/0x310 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f5ce4391b19 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:00007f5ce1907188 EFLAGS: 00000246 ORIG_RAX: 0000000000000127 RAX: ffffffffffffffda RBX: 00007f5ce44a4f60 RCX: 00007f5ce4391b19 RDX: 0000000000000001 RSI: 00000000200011c0 RDI: 0000000000000006 RBP: 00007f5ce19071d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fff78478f0f R14: 00007f5ce1907300 R15: 0000000000022000 ---------------- 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