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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=144c4b66980000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=163c28f6980000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/8c6fbf69718d/disk-3fe121b6.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/39fc7e43dfc1/vmlinux-3fe121b6.xz kernel image: https://storage.googleapis.com/syzbot-assets/0a78e70e4b4e/bzImage-3fe121b6.xz The issue was bisected to: commit ca567df74a28a9fb368c6b2d93e864113f73f5c2 Author: Christian Brauner Date: Sun Jun 7 20:47:08 2020 +0000 nsfs: add pid translation ioctls bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1073805e980000 final oops: https://syzkaller.appspot.com/x/report.txt?x=1273805e980000 console output: https://syzkaller.appspot.com/x/log.txt?x=1473805e980000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+a3e82ae343b26b4d2335@syzkaller.appspotmail.com Fixes: ca567df74a28 ("nsfs: add pid translation ioctls") BUG: sleeping function called from invalid context at include/linux/sched/mm.h:337 in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 5092, name: syz-executor156 preempt_count: 0, expected: 0 RCU nest depth: 1, expected: 0 INFO: lockdep is turned off. CPU: 1 UID: 0 PID: 5092 Comm: syz-executor156 Not tainted 6.10.0-rc7-next-20240712-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 __might_resched+0x5d4/0x780 kernel/sched/core.c:8526 might_alloc include/linux/sched/mm.h:337 [inline] prepare_alloc_pages+0x1c9/0x5d0 mm/page_alloc.c:4503 __alloc_pages_noprof+0x166/0x6c0 mm/page_alloc.c:4721 alloc_pages_mpol_noprof+0x3e8/0x680 mm/mempolicy.c:2263 folio_alloc_mpol_noprof mm/mempolicy.c:2281 [inline] vma_alloc_folio_noprof+0x12e/0x230 mm/mempolicy.c:2312 folio_prealloc+0x31/0x170 wp_page_copy mm/memory.c:3342 [inline] do_wp_page+0x11cc/0x52f0 mm/memory.c:3734 handle_pte_fault+0x1138/0x6eb0 mm/memory.c:5545 __handle_mm_fault mm/memory.c:5672 [inline] handle_mm_fault+0xff1/0x19a0 mm/memory.c:5837 do_user_addr_fault arch/x86/mm/fault.c:1338 [inline] handle_page_fault arch/x86/mm/fault.c:1481 [inline] exc_page_fault+0x459/0x8c0 arch/x86/mm/fault.c:1539 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0033:0x7f3a8171eb80 Code: 84 dd fe ff ff 4c 89 e7 e8 ed 90 00 00 e9 d0 fe ff ff 0f 1f 84 00 00 00 00 00 49 8b 06 48 89 45 00 48 85 c0 0f 85 85 00 00 00 05 49 25 0a 00 01 31 c0 87 05 19 21 0a 00 83 f8 01 0f 8f 84 00 RSP: 002b:00007ffc347a4150 EFLAGS: 00010246 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. For information about bisection process see: https://goo.gl/tpsmEJ#bisection If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup