FAULT_INJECTION: forcing a failure. name fail_usercopy, interval 1, probability 0, space 0, times 1 CPU: 1 PID: 5108 Comm: syz-executor.1 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: 5108, name: syz-executor.1 preempt_count: 0, expected: 0 RCU nest depth: 0, expected: 0 no locks held by syz-executor.1/5108. irq event stamp: 292 hardirqs last enabled at (291): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (292): [] dump_stack_lvl+0x2e/0xb3 softirqs last enabled at (286): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (255): [] __irq_exit_rcu+0x11b/0x180 CPU: 1 PID: 5108 Comm: syz-executor.1 Not tainted 6.0.0-rc1-next-20220819 #1 syz-executor.1[5108] cmdline: /syz-executor.1 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 __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 dump_stack_print_info+0x185/0x190 dump_stack_lvl+0x7f/0xb3 should_fail.cold+0x5/0xa _copy_to_user+0x2a/0x140 store_msg+0x4a/0x140 do_msg_fill+0xa0/0xf0 do_msgrcv+0xa2f/0x1200 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f3a1d8c2b19 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:00007f3a1ae38188 EFLAGS: 00000246 ORIG_RAX: 0000000000000046 RAX: ffffffffffffffda RBX: 00007f3a1d9d5f60 RCX: 00007f3a1d8c2b19 Invalid ELF header len 9 RDX: 00000000000000d5 RSI: 0000000020000580 RDI: 0000000000000000 RBP: 00007f3a1ae381d0 R08: 0000000000003000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffe8744357f R14: 00007f3a1ae38300 R15: 0000000000022000 audit: type=1400 audit(1661010414.854:18): avc: denied { module_load } for pid=5107 comm="syz-executor.2" path=2F6D656D66643A42DB2F89036CDE62CBB534EDBE4C59B55AE11253F547CCF3E902680BCA2896E143DF1CEA8543FB1013FA0316CD17A280A17AB47295C3409DA6F192237D67D360F7CE7ACBB31ABBC438658EB126D18AE6217F8DEA2C7178A238BF22C765064CB036EB3C24D7BAE501039472ABD44A0373AFF641BF56FA1E778DBF994997D8D2E811C404202864656C6574656429 dev="tmpfs" ino=23 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:tmpfs_t:s0 tclass=system permissive=1 Invalid ELF header len 9 syz-executor.1[5108] cmdline: /syz-executor.1 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_to_user+0x2a/0x140 store_msg+0x4a/0x140 do_msg_fill+0xa0/0xf0 do_msgrcv+0xa2f/0x1200 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f3a1d8c2b19 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:00007f3a1ae38188 EFLAGS: 00000246 ORIG_RAX: 0000000000000046 RAX: ffffffffffffffda RBX: 00007f3a1d9d5f60 RCX: 00007f3a1d8c2b19 RDX: 00000000000000d5 RSI: 0000000020000580 RDI: 0000000000000000 RBP: 00007f3a1ae381d0 R08: 0000000000003000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffe8744357f R14: 00007f3a1ae38300 R15: 0000000000022000 FAULT_INJECTION: forcing a failure. name fail_usercopy, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 5135 Comm: syz-executor.1 Tainted: G W 6.0.0-rc1-next-20220819 #1 syz-executor.1[5135] cmdline: /syz-executor.1 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_to_user+0x2a/0x140 simple_read_from_buffer+0xcc/0x160 proc_fail_nth_read+0x198/0x230 vfs_read+0x253/0x930 ksys_read+0x127/0x250 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f3a1d87569c 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 RSP: 002b:00007f3a1ae38170 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007f3a1d87569c RDX: 000000000000000f RSI: 00007f3a1ae381e0 RDI: 0000000000000003 RBP: 00007f3a1ae381d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffe8744357f R14: 00007f3a1ae38300 R15: 0000000000022000 syz-executor.0 (5109) used greatest stack depth: 23320 bytes left