loop7: detected capacity change from 0 to 264192 FAULT_INJECTION: forcing a failure. name fail_usercopy, interval 1, probability 0, space 0, times 1 CPU: 0 PID: 11124 Comm: syz-executor.6 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: 11124, name: syz-executor.6 preempt_count: 0, expected: 0 RCU nest depth: 0, expected: 0 2 locks held by syz-executor.6/11124: #0: ffffffff85949c28 (rtnl_mutex){+.+.}-{3:3}, at: ip_setsockopt+0x327/0x35b0 #1: ffff88800e8ca6b0 (sk_lock-AF_INET){+.+.}-{0:0}, at: ip_setsockopt+0x331/0x35b0 irq event stamp: 3708 hardirqs last enabled at (3707): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (3708): [] dump_stack_lvl+0x2e/0xb3 softirqs last enabled at (3702): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (3687): [] __irq_exit_rcu+0x11b/0x180 CPU: 0 PID: 11124 Comm: syz-executor.6 Not tainted 6.0.0-rc1-next-20220819 #1 syz-executor.6[11124] 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 __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_from_user+0x2a/0x170 copy_group_source_from_sockptr+0x54c/0x610 do_mcast_group_source+0xb1/0x2c0 ip_setsockopt+0xec0/0x35b0 raw_setsockopt+0x27c/0x2c0 __sys_setsockopt+0x180/0x2b0 __x64_sys_setsockopt+0xba/0x160 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7ffb0cd6cb19 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:00007ffb0a2e2188 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007ffb0ce7ff60 RCX: 00007ffb0cd6cb19 RDX: 000000000000002e RSI: 0000000000000000 RDI: 0000000000000005 RBP: 00007ffb0a2e21d0 R08: 0000000000000108 R09: 0000000000000000 R10: 0000000020000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fff05f1969f R14: 00007ffb0a2e2300 R15: 0000000000022000 syz-executor.6[11124] 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_group_source_from_sockptr+0x54c/0x610 do_mcast_group_source+0xb1/0x2c0 ip_setsockopt+0xec0/0x35b0 raw_setsockopt+0x27c/0x2c0 __sys_setsockopt+0x180/0x2b0 __x64_sys_setsockopt+0xba/0x160 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7ffb0cd6cb19 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:00007ffb0a2e2188 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007ffb0ce7ff60 RCX: 00007ffb0cd6cb19 RDX: 000000000000002e RSI: 0000000000000000 RDI: 0000000000000005 RBP: 00007ffb0a2e21d0 R08: 0000000000000108 R09: 0000000000000000 R10: 0000000020000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fff05f1969f R14: 00007ffb0a2e2300 R15: 0000000000022000 loop6: detected capacity change from 0 to 256 FAT-fs (loop6): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) loop7: detected capacity change from 0 to 264192 loop7: detected capacity change from 0 to 264192 loop7: detected capacity change from 0 to 256 FAT-fs (loop7): bogus number of FAT sectors FAT-fs (loop7): Can't find a valid FAT filesystem