[Android 5.15] BUG: scheduling while atomic in _vm_unmap_aliases

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: 993bed180178 Merge "Merge branch 'android13-5.15' into bra..
git tree: android13-5.15-lts
console output: https://syzkaller.appspot.com/x/log.txt?x=1405460a180000
kernel config: https://syzkaller.appspot.com/x/.config?x=49ce29477ba81e8f
dashboard link: https://syzkaller.appspot.com/bug?extid=565abaf53d73a9910bff
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=12942f1e180000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15740a59180000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/4098d24d4c8b/disk-993bed18.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/94fbc07ac02d/vmlinux-993bed18.xz
kernel image: https://storage.googleapis.com/syzbot-assets/eed14de06c19/bzImage-993bed18.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+565aba...@syzkaller.appspotmail.com

BUG: scheduling while atomic: syz-executor832/717/0x00000002
Modules linked in:
Preemption disabled at:
[<ffffffff8165ea9a>] is_module_text_address+0x1a/0x140 kernel/module.c:4811
CPU: 1 PID: 717 Comm: syz-executor832 Not tainted 5.15.148-syzkaller-00718-g993bed180178 #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+0x151/0x1b7 lib/dump_stack.c:106
dump_stack+0x15/0x17 lib/dump_stack.c:113
__schedule_bug+0x195/0x260 kernel/sched/core.c:5707
schedule_debug kernel/sched/core.c:5734 [inline]
__schedule+0xd19/0x1590 kernel/sched/core.c:6402
schedule+0x11f/0x1e0 kernel/sched/core.c:6595
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6654
mutex_optimistic_spin kernel/locking/mutex.c:521 [inline]
__mutex_lock_common kernel/locking/mutex.c:620 [inline]
__mutex_lock+0x5b5/0x1870 kernel/locking/mutex.c:755
__mutex_lock_slowpath+0xe/0x10 kernel/locking/mutex.c:1006
mutex_lock+0x135/0x1e0 kernel/locking/mutex.c:288
_vm_unmap_aliases+0x328/0x3b0 mm/vmalloc.c:2116
vm_unmap_aliases+0x19/0x20 mm/vmalloc.c:2141
change_page_attr_set_clr+0x308/0x1050 arch/x86/mm/pat/set_memory.c:1740
change_page_attr_clear arch/x86/mm/pat/set_memory.c:1797 [inline]
set_memory_ro+0xa1/0xe0 arch/x86/mm/pat/set_memory.c:1943
bpf_jit_binary_lock_ro include/linux/filter.h:888 [inline]
bpf_int_jit_compile+0xbf42/0xc6d0 arch/x86/net/bpf_jit_comp.c:2372
bpf_prog_select_runtime+0x706/0x9e0 kernel/bpf/core.c:1930
bpf_prog_load+0x1315/0x1b50 kernel/bpf/syscall.c:2331
__sys_bpf+0x4bc/0x760 kernel/bpf/syscall.c:4627
__do_sys_bpf kernel/bpf/syscall.c:4731 [inline]
__se_sys_bpf kernel/bpf/syscall.c:4729 [inline]
__x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:4729
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: 0033:0x7ff81b59dee9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc4cd40758 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff81b59dee9
RDX: 0000000000000090 RSI: 00000000200004c0 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000000 R09: 00000000000000a0
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
</TASK>


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[syzbot]

syzbot suspects this issue was fixed by commit:

commit 4b349c55bbd33c8918dbac13876d6842af571505
Author: Jiri Olsa <jo...@kernel.org>
Date: Sat Feb 17 12:13:20 2024 +0000

bpf: Do cleanup in bpf_bprintf_cleanup only when needed

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1725b29e980000
start commit: 424f92bcbe8f Merge branch 'android13-5.15' into branch 'an..
git tree: android13-5.15-lts
kernel config: https://syzkaller.appspot.com/x/.config?x=4bd6534b2e0a6561
dashboard link: https://syzkaller.appspot.com/bug?extid=565abaf53d73a9910bff
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16c7d2d2980000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11941f34980000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: bpf: Do cleanup in bpf_bprintf_cleanup only when needed

For information about bisection process see: https://goo.gl/tpsmEJ#bisection