------------[ cut here ]------------ WARNING: CPU: 1 PID: 11680 at include/linux/fs.h:525 i_mmap_assert_write_locked include/linux/fs.h:525 [inline] WARNING: CPU: 1 PID: 11680 at include/linux/fs.h:525 i_mmap_assert_write_locked include/linux/fs.h:523 [inline] WARNING: CPU: 1 PID: 11680 at include/linux/fs.h:525 hugetlb_split+0x320/0xc50 mm/hugetlb.c:3716 Modules linked in: CPU: 1 PID: 11680 Comm: syz-executor.0 Not tainted 5.10.246 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:i_mmap_assert_write_locked include/linux/fs.h:525 [inline] RIP: 0010:i_mmap_assert_write_locked include/linux/fs.h:523 [inline] RIP: 0010:hugetlb_split+0x320/0xc50 mm/hugetlb.c:3716 Code: 00 00 31 f6 48 81 c7 e0 00 00 00 e8 1a 3e 7d 02 31 ff 41 89 c6 89 c6 e8 9e d1 d5 ff 45 85 f6 0f 85 5e fe ff ff e8 40 d8 d5 ff <0f> 0b e9 52 fe ff ff e8 34 d8 d5 ff 48 8d 43 50 48 89 c2 48 89 44 RSP: 0018:ffff88805ff5fad8 EFLAGS: 00010216 RAX: 00000000000000fa RBX: ffff888008901a00 RCX: ffffc900118e9000 RDX: 0000000000040000 RSI: ffffffff816af540 RDI: 0000000000000005 RBP: 0000000020800000 R08: 0000000000000000 R09: ffff88800ce400bf R10: 0000000000000000 R11: 0000000000000001 R12: 1ffff1100bfebf64 R13: ffffffff8567bcfc R14: 0000000000000000 R15: 0000000000000001 FS: 00007fe59b80a700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 FAULT_INJECTION: forcing a failure. name fail_usercopy, interval 1, probability 0, space 0, times 0 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30522000 CR3: 000000005aefe000 CR4: 0000000000350ee0 CPU: 0 PID: 11675 Comm: syz-executor.7 Not tainted 5.10.246 #1 Call Trace: 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 _copy_from_user+0x2e/0x1b0 lib/usercopy.c:15 copy_from_user include/linux/uaccess.h:192 [inline] __copy_msghdr_from_user+0x91/0x4b0 net/socket.c:2260 __vma_adjust+0xbe8/0x2510 mm/mmap.c:842 vma_adjust include/linux/mm.h:2548 [inline] __split_vma+0x41a/0x4e0 mm/mmap.c:2782 copy_msghdr_from_user net/socket.c:2311 [inline] sendmsg_copy_msghdr+0xa1/0x160 net/socket.c:2409 split_vma+0x99/0xe0 mm/mmap.c:2813 ___sys_sendmsg+0xc6/0x170 net/socket.c:2428 mprotect_fixup+0x669/0x8c0 mm/mprotect.c:467 do_mprotect_pkey+0x518/0x940 mm/mprotect.c:619 __sys_sendmmsg+0x195/0x470 net/socket.c:2518 __do_sys_pkey_mprotect mm/mprotect.c:652 [inline] __se_sys_pkey_mprotect mm/mprotect.c:649 [inline] __x64_sys_pkey_mprotect+0x93/0x100 mm/mprotect.c:649 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 __do_sys_sendmmsg net/socket.c:2547 [inline] __se_sys_sendmmsg net/socket.c:2544 [inline] __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2544 RIP: 0033:0x7fe59e294b19 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 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 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f9bacddeb19 RSP: 002b:00007fe59b80a188 EFLAGS: 00000246 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:00007f9baa354188 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 ORIG_RAX: 0000000000000149 RAX: ffffffffffffffda RBX: 00007f9bacef1f60 RCX: 00007f9bacddeb19 RDX: 000000007ffff000 RSI: 0000000020004d00 RDI: 0000000000000004 RBP: 00007f9baa3541d0 R08: 0000000000000000 R09: 0000000000000000 RAX: ffffffffffffffda RBX: 00007fe59e3a7f60 RCX: 00007fe59e294b19 R10: 0000000000000811 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffe1e8c9b0f R14: 00007f9baa354300 R15: 0000000000022000 hpet: Lost 2 RTC interrupts RDX: 0000000000000000 RSI: 0000000000800000 RDI: 0000000020800000 netlink: 124 bytes leftover after parsing attributes in process `syz-executor.1'. RBP: 00007fe59e2eef6d R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffef3ea272f R14: 00007fe59b80a300 R15: 0000000000022000 irq event stamp: 1199 hardirqs last enabled at (1205): [] console_trylock_spinning kernel/printk/printk.c:1849 [inline] hardirqs last enabled at (1205): [] vprintk_emit+0x490/0x4e0 kernel/printk/printk.c:2059 hardirqs last disabled at (1210): [] console_trylock_spinning kernel/printk/printk.c:1828 [inline] hardirqs last disabled at (1210): [] vprintk_emit+0x422/0x4e0 kernel/printk/printk.c:2059 softirqs last enabled at (970): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (965): [] asm_call_irq_on_stack+0x12/0x20 ---[ end trace c1a13eb18a24ebda ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 11680 at include/linux/fs.h:525 i_mmap_assert_write_locked include/linux/fs.h:525 [inline] WARNING: CPU: 1 PID: 11680 at include/linux/fs.h:525 i_mmap_assert_write_locked include/linux/fs.h:523 [inline] WARNING: CPU: 1 PID: 11680 at include/linux/fs.h:525 hugetlb_split+0x320/0xc50 mm/hugetlb.c:3716 Modules linked in: CPU: 1 PID: 11680 Comm: syz-executor.0 Tainted: G W 5.10.246 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:i_mmap_assert_write_locked include/linux/fs.h:525 [inline] RIP: 0010:i_mmap_assert_write_locked include/linux/fs.h:523 [inline] RIP: 0010:hugetlb_split+0x320/0xc50 mm/hugetlb.c:3716 Code: 00 00 31 f6 48 81 c7 e0 00 00 00 e8 1a 3e 7d 02 31 ff 41 89 c6 89 c6 e8 9e d1 d5 ff 45 85 f6 0f 85 5e fe ff ff e8 40 d8 d5 ff <0f> 0b e9 52 fe ff ff e8 34 d8 d5 ff 48 8d 43 50 48 89 c2 48 89 44 RSP: 0018:ffff88805ff5fad8 EFLAGS: 00010246 RAX: 0000000000040000 RBX: ffff888008901a00 RCX: ffffc900118e9000 RDX: 0000000000040000 RSI: ffffffff816af540 RDI: 0000000000000005 RBP: 0000000020c00000 R08: 0000000000000000 R09: ffff88800ce400bf R10: 0000000000000000 R11: 0000000000000001 R12: 1ffff1100bfebf64 R13: ffffffff8567bcfc R14: 0000000000000000 R15: 0000000000000001 FS: 00007fe59b80a700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pid=11685 comm=syz-executor.5 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30522000 CR3: 000000005aefe000 CR4: 0000000000350ee0 Call Trace: __vma_adjust+0xbf3/0x2510 mm/mmap.c:843 vma_adjust include/linux/mm.h:2548 [inline] __split_vma+0x41a/0x4e0 mm/mmap.c:2782 split_vma+0x99/0xe0 mm/mmap.c:2813 mprotect_fixup+0x669/0x8c0 mm/mprotect.c:467 do_mprotect_pkey+0x518/0x940 mm/mprotect.c:619 __do_sys_pkey_mprotect mm/mprotect.c:652 [inline] __se_sys_pkey_mprotect mm/mprotect.c:649 [inline] __x64_sys_pkey_mprotect+0x93/0x100 mm/mprotect.c:649 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7fe59e294b19 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:00007fe59b80a188 EFLAGS: 00000246 ORIG_RAX: 0000000000000149 RAX: ffffffffffffffda RBX: 00007fe59e3a7f60 RCX: 00007fe59e294b19 RDX: 0000000000000000 RSI: 0000000000800000 RDI: 0000000020800000 RBP: 00007fe59e2eef6d R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffef3ea272f R14: 00007fe59b80a300 R15: 0000000000022000 irq event stamp: 1817 hardirqs last enabled at (1825): [] console_unlock+0x92d/0xb40 kernel/printk/printk.c:2567 hardirqs last disabled at (1834): [] console_unlock+0x839/0xb40 kernel/printk/printk.c:2482 softirqs last enabled at (1504): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (1499): [] asm_call_irq_on_stack+0x12/0x20 ---[ end trace c1a13eb18a24ebdb ]--- netlink: 20 bytes leftover after parsing attributes in process `syz-executor.6'. FAULT_INJECTION: forcing a failure. name fail_usercopy, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 11697 Comm: syz-executor.7 Tainted: G W 5.10.246 #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 _copy_from_user+0x2e/0x1b0 lib/usercopy.c:15 copy_from_user include/linux/uaccess.h:192 [inline] __copy_msghdr_from_user+0x91/0x4b0 net/socket.c:2260 copy_msghdr_from_user net/socket.c:2311 [inline] sendmsg_copy_msghdr+0xa1/0x160 net/socket.c:2409 ___sys_sendmsg+0xc6/0x170 net/socket.c:2428 __sys_sendmmsg+0x195/0x470 net/socket.c:2518 __do_sys_sendmmsg net/socket.c:2547 [inline] __se_sys_sendmmsg net/socket.c:2544 [inline] __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2544 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f9bacddeb19 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:00007f9baa354188 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007f9bacef1f60 RCX: 00007f9bacddeb19 RDX: 000000007ffff000 RSI: 0000000020004d00 RDI: 0000000000000004 RBP: 00007f9baa3541d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000811 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffe1e8c9b0f R14: 00007f9baa354300 R15: 0000000000022000 nfs: Unknown parameter '.ocac' nfs: Unknown parameter '.ocac' 9pnet: Insufficient options for proto=fd FAULT_INJECTION: forcing a failure. name fail_usercopy, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 11718 Comm: syz-executor.7 Tainted: G W 5.10.246 #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 _copy_from_user+0x2e/0x1b0 lib/usercopy.c:15 copy_from_user include/linux/uaccess.h:192 [inline] __copy_msghdr_from_user+0x91/0x4b0 net/socket.c:2260 copy_msghdr_from_user net/socket.c:2311 [inline] sendmsg_copy_msghdr+0xa1/0x160 net/socket.c:2409 ___sys_sendmsg+0xc6/0x170 net/socket.c:2428 __sys_sendmmsg+0x195/0x470 net/socket.c:2518 __do_sys_sendmmsg net/socket.c:2547 [inline] __se_sys_sendmmsg net/socket.c:2544 [inline] __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2544 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f9bacddeb19 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:00007f9baa354188 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007f9bacef1f60 RCX: 00007f9bacddeb19 RDX: 000000007ffff000 RSI: 0000000020004d00 RDI: 0000000000000004 RBP: 00007f9baa3541d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000811 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffe1e8c9b0f R14: 00007f9baa354300 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