------------[ cut here ]------------ WARNING: CPU: 1 PID: 15365 at include/linux/fs.h:525 i_mmap_assert_write_locked include/linux/fs.h:525 [inline] WARNING: CPU: 1 PID: 15365 at include/linux/fs.h:525 i_mmap_assert_write_locked include/linux/fs.h:523 [inline] WARNING: CPU: 1 PID: 15365 at include/linux/fs.h:525 hugetlb_split+0x320/0xc50 mm/hugetlb.c:3716 Modules linked in: CPU: 1 PID: 15365 Comm: syz-executor.7 Not tainted 5.10.244 #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 8a fb 7c 02 31 ff 41 89 c6 89 c6 e8 0e d4 d5 ff 45 85 f6 0f 85 5e fe ff ff e8 b0 da d5 ff <0f> 0b e9 52 fe ff ff e8 a4 da d5 ff 48 8d 43 50 48 89 c2 48 89 44 RSP: 0018:ffff88804a39f9a0 EFLAGS: 00010212 RAX: 000000000000016f RBX: ffff88801ac36500 RCX: ffffc90006e20000 RDX: 0000000000040000 RSI: ffffffff816af780 RDI: 0000000000000005 RBP: 0000000020400000 R08: 0000000000000000 R09: ffff8880202087bf R10: 0000000000000000 R11: 0000000000000001 R12: 1ffff11009473f3d R13: ffffffff8567ae3c R14: 0000000000000000 R15: 0000000000000001 FS: 00007f4edb8eb700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000080 CR3: 000000004a450000 CR4: 0000000000350ee0 Call Trace: __vma_adjust+0xbe8/0x2510 mm/mmap.c:842 vma_adjust include/linux/mm.h:2548 [inline] __split_vma+0x41a/0x4e0 mm/mmap.c:2782 __do_munmap+0xfae/0x1260 mm/mmap.c:2880 do_munmap mm/mmap.c:2934 [inline] munmap_vma_range mm/mmap.c:600 [inline] __mmap_region mm/mmap.c:1767 [inline] mmap_region+0x7cc/0x1500 mm/mmap.c:2957 do_mmap+0x868/0x1370 mm/mmap.c:1594 vm_mmap_pgoff+0x198/0x1f0 mm/util.c:539 ksys_mmap_pgoff+0xde/0x560 mm/mmap.c:1645 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f4ede375b19 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:00007f4edb8eb188 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007f4ede488f60 RCX: 00007f4ede375b19 RDX: 0000000000000000 RSI: 0000000000400000 RDI: 0000000020000000 RBP: 00007f4ede3cff6d R08: ffffffffffffffff R09: 0000000000000000 R10: 0000000000002132 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffab36483f R14: 00007f4edb8eb300 R15: 0000000000022000 irq event stamp: 1049 hardirqs last enabled at (1059): [] console_unlock+0x92d/0xb40 kernel/printk/printk.c:2567 hardirqs last disabled at (1068): [] console_unlock+0x839/0xb40 kernel/printk/printk.c:2482 softirqs last enabled at (606): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (527): [] asm_call_irq_on_stack+0x12/0x20 ---[ end trace 65d12f2054f07ae2 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 15365 at include/linux/fs.h:525 i_mmap_assert_write_locked include/linux/fs.h:525 [inline] WARNING: CPU: 1 PID: 15365 at include/linux/fs.h:525 i_mmap_assert_write_locked include/linux/fs.h:523 [inline] WARNING: CPU: 1 PID: 15365 at include/linux/fs.h:525 hugetlb_split+0x320/0xc50 mm/hugetlb.c:3716 Modules linked in: CPU: 1 PID: 15365 Comm: syz-executor.7 Tainted: G W 5.10.244 #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 8a fb 7c 02 31 ff 41 89 c6 89 c6 e8 0e d4 d5 ff 45 85 f6 0f 85 5e fe ff ff e8 b0 da d5 ff <0f> 0b e9 52 fe ff ff e8 a4 da d5 ff 48 8d 43 50 48 89 c2 48 89 44 RSP: 0018:ffff88804a39f9a0 EFLAGS: 00010216 RAX: 00000000000192e9 RBX: ffff88801ac36500 RCX: ffffc90006e20000 RDX: 0000000000040000 RSI: ffffffff816af780 RDI: 0000000000000005 RBP: 0000000020800000 R08: 0000000000000000 R09: ffff8880202087bf R10: 0000000000000000 R11: 0000000000000001 R12: 1ffff11009473f3d R13: ffffffff8567ae3c R14: 0000000000000000 R15: 0000000000000001 FS: 00007f4edb8eb700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000080 CR3: 000000004a450000 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 __do_munmap+0xfae/0x1260 mm/mmap.c:2880 do_munmap mm/mmap.c:2934 [inline] munmap_vma_range mm/mmap.c:600 [inline] __mmap_region mm/mmap.c:1767 [inline] mmap_region+0x7cc/0x1500 mm/mmap.c:2957 do_mmap+0x868/0x1370 mm/mmap.c:1594 vm_mmap_pgoff+0x198/0x1f0 mm/util.c:539 ksys_mmap_pgoff+0xde/0x560 mm/mmap.c:1645 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f4ede375b19 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:00007f4edb8eb188 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007f4ede488f60 RCX: 00007f4ede375b19 RDX: 0000000000000000 RSI: 0000000000400000 RDI: 0000000020000000 RBP: 00007f4ede3cff6d R08: ffffffffffffffff R09: 0000000000000000 FAULT_INJECTION: forcing a failure. name fail_usercopy, interval 1, probability 0, space 0, times 0 R10: 0000000000002132 R11: 0000000000000246 R12: 0000000000000000 CPU: 0 PID: 15371 Comm: syz-executor.2 Tainted: G W 5.10.244 #1 R13: 00007fffab36483f R14: 00007f4edb8eb300 R15: 0000000000022000 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Call Trace: irq event stamp: 1571 __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 hardirqs last enabled at (1583): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 copy_from_user include/linux/uaccess.h:192 [inline] copy_iovec_from_user lib/iov_iter.c:1687 [inline] iovec_from_user lib/iov_iter.c:1722 [inline] iovec_from_user+0x141/0x400 lib/iov_iter.c:1697 hardirqs last disabled at (1592): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1106 __import_iovec+0x67/0x590 lib/iov_iter.c:1740 softirqs last enabled at (606): [] asm_call_irq_on_stack+0x12/0x20 import_iovec+0x83/0xb0 lib/iov_iter.c:1805 softirqs last disabled at (527): [] asm_call_irq_on_stack+0x12/0x20 copy_msghdr_from_user net/socket.c:2316 [inline] sendmsg_copy_msghdr+0x131/0x160 net/socket.c:2409 ---[ end trace 65d12f2054f07ae3 ]--- ___sys_sendmsg+0xc6/0x170 net/socket.c:2428 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2461 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f112ee05b19 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:00007f112c37b188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f112ef18f60 RCX: 00007f112ee05b19 RDX: 0000000000048080 RSI: 0000000020000040 RDI: 0000000000000004 RBP: 00007f112c37b1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffd1d4927af R14: 00007f112c37b300 R15: 0000000000022000 hpet: Lost 1 RTC interrupts netlink: 16 bytes leftover after parsing attributes in process `syz-executor.3'. loop6: detected capacity change from 0 to 131072 loop6: detected capacity change from 0 to 131072