netlink: 12 bytes leftover after parsing attributes in process `syz-executor.0'. FAULT_INJECTION: forcing a failure. name fail_usercopy, interval 1, probability 0, space 0, times 1 CPU: 1 PID: 5983 Comm: syz-executor.7 Not tainted 6.0.0-rc1-next-20220819 #1 BUG: sleeping function called from invalid context at kernel/locking/rwsem.c:1521 in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 5983, name: syz-executor.7 preempt_count: 0, expected: 0 RCU nest depth: 0, expected: 0 no locks held by syz-executor.7/5983. irq event stamp: 310 hardirqs last enabled at (309): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (310): [] dump_stack_lvl+0x2e/0xb3 softirqs last enabled at (304): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (293): [] __irq_exit_rcu+0x11b/0x180 CPU: 1 PID: 5983 Comm: syz-executor.7 Not tainted 6.0.0-rc1-next-20220819 #1 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.0'. loop3: detected capacity change from 0 to 40 syz-executor.7[5983] cmdline: /syz-executor.7 exec Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. Call Trace: dump_stack_lvl+0x8b/0xb3 __might_resched.cold+0x222/0x26b down_read_killable+0x75/0x490 __access_remote_vm+0xac/0x6f0 get_mm_cmdline.part.0+0x214/0x600 get_task_cmdline_kernel+0x1e9/0x230 dump_stack_print_cmdline.part.0+0x82/0x150 FAULT_INJECTION: forcing a failure. name fail_usercopy, interval 1, probability 0, space 0, times 1 dump_stack_print_info+0x185/0x190 dump_stack_lvl+0x7f/0xb3 should_fail.cold+0x5/0xa _copy_from_user+0x2a/0x170 copy_msghdr_from_user+0x89/0x150 ___sys_sendmsg+0xdd/0x1b0 __sys_sendmsg+0xf3/0x1c0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fc54bc15b19 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:00007fc54918b188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fc54bd28f60 RCX: 00007fc54bc15b19 RDX: 0000000000000000 RSI: 0000000020000280 RDI: 0000000000000003 RBP: 00007fc54918b1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffd027e602f R14: 00007fc54918b300 R15: 0000000000022000 syz-executor.7[5983] cmdline: /syz-executor.7 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 should_fail.cold+0x5/0xa _copy_from_user+0x2a/0x170 copy_msghdr_from_user+0x89/0x150 ___sys_sendmsg+0xdd/0x1b0 __sys_sendmsg+0xf3/0x1c0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fc54bc15b19 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:00007fc54918b188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fc54bd28f60 RCX: 00007fc54bc15b19 RDX: 0000000000000000 RSI: 0000000020000280 RDI: 0000000000000003 RBP: 00007fc54918b1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffd027e602f R14: 00007fc54918b300 R15: 0000000000022000 CPU: 0 PID: 5992 Comm: syz-executor.5 Tainted: G W 6.0.0-rc1-next-20220819 #1 FAULT_INJECTION: forcing a failure. name fail_usercopy, interval 1, probability 0, space 0, times 0 syz-executor.5[5992] cmdline: /syz-executor.5 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 should_fail.cold+0x5/0xa _copy_from_user+0x2a/0x170 copy_msghdr_from_user+0x89/0x150 ___sys_sendmsg+0xdd/0x1b0 __sys_sendmsg+0xf3/0x1c0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fa3e66a6b19 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:00007fa3e3c1c188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fa3e67b9f60 RCX: 00007fa3e66a6b19 RDX: 0000000000000000 RSI: 0000000020000280 RDI: 0000000000000003 RBP: 00007fa3e3c1c1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fffc477d19f R14: 00007fa3e3c1c300 R15: 0000000000022000 CPU: 1 PID: 5998 Comm: syz-executor.6 Tainted: G W 6.0.0-rc1-next-20220819 #1 syz-executor.6[5998] cmdline: /syz-executor.6 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 should_fail.cold+0x5/0xa _copy_from_user+0x2a/0x170 copy_msghdr_from_user+0x89/0x150 ___sys_sendmsg+0xdd/0x1b0 __sys_sendmsg+0xf3/0x1c0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f6adb966b19 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.0'. 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:00007f6ad8edc188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f6adba79f60 RCX: 00007f6adb966b19 RDX: 0000000000000000 RSI: 0000000020000280 RDI: 0000000000000003 RBP: 00007f6ad8edc1d0 R08: 0000000000000000 R09: 0000000000000000 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffc2033a63f R14: 00007f6ad8edc300 R15: 0000000000022000 FAULT_INJECTION: forcing a failure. name fail_usercopy, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 6006 Comm: syz-executor.2 Tainted: G W 6.0.0-rc1-next-20220819 #1 syz-executor.2[6006] cmdline: /syz-executor.2 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 should_fail.cold+0x5/0xa _copy_from_user+0x2a/0x170 copy_msghdr_from_user+0x89/0x150 ___sys_sendmsg+0xdd/0x1b0 __sys_sendmsg+0xf3/0x1c0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f9f7562eb19 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:00007f9f72ba4188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f9f75741f60 RCX: 00007f9f7562eb19 RDX: 0000000000000000 RSI: 0000000020000280 RDI: 0000000000000003 RBP: 00007f9f72ba41d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffcbb16196f R14: 00007f9f72ba4300 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