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charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 4cbfe4502e3d Merge tag 'v7.1-rc5-ksmbd-server-fixes' of gi.. git tree: https://kernel.googlesource.com/pub/scm/linux/kernel/git/torvalds/linux master console output: https://syzkaller.appspot.com/x/log.txt?x=146c161f980000 kernel config: https://syzkaller.appspot.com/x/.config?x=9475bd041c93289 dashboard link: https://syzkaller.appspot.com/bug?extid=5d32c8bd82427f9c77cc compiler: aarch64-linux-gnu-gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44 userspace arch: arm64 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11026336580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14ab9796580000 Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/fa3fbcfdac58/non_bootable_disk-4cbfe450.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/e825a08fb48d/vmlinux-4cbfe450.xz kernel image: https://storage.googleapis.com/syzbot-assets/55037c053ec3/Image-4cbfe450.gz.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+5d32c8bd82427f9c77cc@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: mm/page_alloc.c:5202 at __alloc_frozen_pages_noprof+0x734/0x1144 mm/page_alloc.c:5202, CPU#0: syz.2.17/3592 Modules linked in: CPU: 0 UID: 0 PID: 3592 Comm: syz.2.17 Not tainted syzkaller #0 PREEMPT Hardware name: linux,dummy-virt (DT) pstate: 21402009 (nzCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : __alloc_frozen_pages_noprof+0x734/0x1144 mm/page_alloc.c:5202 lr : alloc_pages_mpol+0x70/0x1a4 mm/mempolicy.c:2490 sp : ffff800085d93900 x29: ffff800085d93a00 x28: 000000000000000b x27: 0000000000000000 x26: 0000000000000000 x25: fcf0000014c00000 x24: 0000000000040dc0 x23: 0000000000000000 x22: 0000000000000000 x21: 000000000000000b x20: ffffffffffffffff x19: 0000000000000000 x18: 0000000000000002 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000020000200 x14: ffff8000828b2000 x13: ffffc1ffc0000000 x12: 0000000000000001 x11: 0000000000000000 x10: ffff800082b6f4e8 x9 : 0000000000000000 x8 : 0000000000000030 x7 : ffff800082e9b430 x6 : 0000000000000001 x5 : 0000000000000000 x4 : f3f00000065c90c0 x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000001 x0 : ffff800082dfd000 Call trace: __alloc_frozen_pages_noprof+0x734/0x1144 mm/page_alloc.c:5202 (P) alloc_pages_mpol+0x70/0x1a4 mm/mempolicy.c:2490 alloc_frozen_pages_noprof+0x48/0xd4 mm/mempolicy.c:2561 ___kmalloc_large_node+0x11c/0x13c mm/slub.c:5237 __kmalloc_large_node_noprof mm/slub.c:5268 [inline] __do_kmalloc_node mm/slub.c:5284 [inline] __kmalloc_noprof+0x450/0x560 mm/slub.c:5308 kmalloc_noprof include/linux/slab.h:954 [inline] kzalloc_noprof include/linux/slab.h:1188 [inline] fill_object_idr drivers/gpu/drm/drm_lease.c:389 [inline] drm_mode_create_lease_ioctl+0x184/0x93c drivers/gpu/drm/drm_lease.c:521 drm_ioctl_kernel+0xc0/0x130 drivers/gpu/drm/drm_ioctl.c:804 drm_ioctl+0x258/0x580 drivers/gpu/drm/drm_ioctl.c:901 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl fs/ioctl.c:583 [inline] __arm64_sys_ioctl+0xac/0x104 fs/ioctl.c:583 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x54/0x10c arch/arm64/kernel/syscall.c:49 el0_svc_common.constprop.0+0x40/0xe0 arch/arm64/kernel/syscall.c:121 do_el0_svc+0x1c/0x34 arch/arm64/kernel/syscall.c:140 el0_svc+0x38/0x140 arch/arm64/kernel/entry-common.c:740 el0t_64_sync_handler+0xa0/0xf0 arch/arm64/kernel/entry-common.c:759 el0t_64_sync+0x1a4/0x1a8 arch/arm64/kernel/entry.S:594 ---[ end trace 0000000000000000 ]--- --- 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. 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