[v5.15] BUG: sleeping function called from invalid context in exit_mmap

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Feb 21, 2024, 10:34:24 AMFeb 21
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Hello,

syzbot found the following issue on:

HEAD commit: 6139f2a02fe0 Linux 5.15.148
git tree: linux-5.15.y
console output: https://syzkaller.appspot.com/x/log.txt?x=14c8cf52180000
kernel config: https://syzkaller.appspot.com/x/.config?x=c170eb20d8be8542
dashboard link: https://syzkaller.appspot.com/bug?extid=3d69736e9e836dd043cf
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14ea8b94180000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15e34f8a180000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/2ac68f24aed3/disk-6139f2a0.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/e8982a3768c5/vmlinux-6139f2a0.xz
kernel image: https://storage.googleapis.com/syzbot-assets/eb272dd019ce/bzImage-6139f2a0.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+3d6973...@syzkaller.appspotmail.com

BUG: sleeping function called from invalid context at mm/mmap.c:3198
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 5543, name: syz-executor409
no locks held by syz-executor409/5543.
Preemption disabled at:
[<ffffffff8174f806>] is_module_text_address+0x16/0x140 kernel/module.c:4758
CPU: 0 PID: 5543 Comm: syz-executor409 Not tainted 5.15.148-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
___might_sleep+0x547/0x6a0 kernel/sched/core.c:9626
exit_mmap+0x569/0x670 mm/mmap.c:3198
__mmput+0x112/0x3b0 kernel/fork.c:1126
exit_mm+0x688/0x7f0 kernel/exit.c:548
do_exit+0x626/0x2480 kernel/exit.c:859
do_group_exit+0x144/0x310 kernel/exit.c:994
__do_sys_exit_group kernel/exit.c:1005 [inline]
__se_sys_exit_group kernel/exit.c:1003 [inline]
__x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1003
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f56e88f25b9
Code: Unable to access opcode bytes at RIP 0x7f56e88f258f.
RSP: 002b:00007ffed75d9e28 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f56e88f25b9
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000
RBP: 00007f56e896e370 R08: ffffffffffffffb8 R09: 0000000000000004
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f56e896e370
R13: 0000000000000000 R14: 00007f56e896ede0 R15: 00007f56e88c3500
</TASK>
BUG: scheduling while atomic: syz-executor409/5543/0x00000002
no locks held by syz-executor409/5543.
Modules linked in:
Preemption disabled at:
[<ffffffff8174f806>] is_module_text_address+0x16/0x140 kernel/module.c:4758


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