------------[ cut here ]------------ !(flags & __GFP_NOWARN) WARNING: mm/slub.c:7013 at __kvmalloc_node_noprof+0x798/0x820 mm/slub.c:7013, CPU#1: syz.0.17/5882 Modules linked in: CPU: 1 UID: 0 PID: 5882 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:__kvmalloc_node_noprof+0x798/0x820 mm/slub.c:7013 Code: ff 48 c7 c7 b0 f4 c8 8e 48 89 de e8 02 e9 eb 02 e9 1b fc ff ff 48 c7 c7 f0 f4 c8 8e 48 89 de e8 ee e8 eb 02 e9 4c fc ff ff 90 <0f> 0b 90 31 db e9 06 fe ff ff 90 0f 0b 90 e9 55 ff ff ff 49 83 7f RSP: 0018:ffffc900036d7ae0 EFLAGS: 00010246 RAX: 0000000000000100 RBX: 0000000000000000 RCX: 8000000000000001 RDX: 0000008000000000 RSI: ffffffff8c4c9460 RDI: ffffffff8c4c9420 RBP: 00000000ffffffff R08: 00000000000028c0 R09: 00000000ffffffff R10: 0000000000000006 R11: 0000000000000000 R12: 0000008000000000 R13: 00000000000028c0 R14: 0000001000000000 R15: ffffffff8651733c FS: 0000555577cae500(0000) GS:ffff88812500a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6130470000 CR3: 0000000025662000 CR4: 00000000003526f0 Call Trace: init_udmabuf drivers/dma-buf/udmabuf.c:193 [inline] udmabuf_create+0x2dc/0xf50 drivers/dma-buf/udmabuf.c:386 udmabuf_ioctl_create drivers/dma-buf/udmabuf.c:465 [inline] udmabuf_ioctl+0x1f3/0x300 drivers/dma-buf/udmabuf.c:496 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f613059e0d9 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fffcd8b4438 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f6130825fa0 RCX: 00007f613059e0d9 RDX: 00002000000002c0 RSI: 0000000040187542 RDI: 0000000000000003 RBP: 00007f6130635024 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f6130825fac R14: 00007f6130825fa0 R15: 00007f6130825fa0