------------[ cut here ]------------ kernel BUG at include/linux/highmem.h:269! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 1 UID: 0 PID: 20531 Comm: syz.4.3236 Not tainted 6.12.0-rc3-next-20241016-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:zero_user_segments include/linux/highmem.h:269 [inline] RIP: 0010:folio_zero_range include/linux/highmem.h:641 [inline] RIP: 0010:fuse_notify_store fs/fuse/dev.c:1671 [inline] RIP: 0010:fuse_notify fs/fuse/dev.c:1908 [inline] RIP: 0010:fuse_dev_do_write+0x5d6d/0x5da0 fs/fuse/dev.c:1992 Code: c6 a0 11 41 8c e8 43 fc c9 fe 90 0f 0b e8 ab 55 7e fe 4c 89 ef 48 c7 c6 40 11 41 8c e8 2c fc c9 fe 90 0f 0b e8 94 55 7e fe 90 <0f> 0b e8 8c 55 7e fe eb 0c e8 85 55 7e fe eb c1 e8 7e 55 7e fe 4c RSP: 0018:ffffc9000492f860 EFLAGS: 00010283 RAX: ffffffff83168cbc RBX: 0000000000001001 RCX: 0000000000040000 RDX: ffffc90009cca000 RSI: 0000000000000b72 RDI: 0000000000000b73 RBP: ffffc9000492fbb0 R08: ffffffff8316685c R09: 1ffffd40003afa58 R10: dffffc0000000000 R11: fffff940003afa59 R12: 0000000000001000 R13: ffffea0001d7d2c0 R14: 1ffffd40003afa58 R15: 0000000000000001 FS: 00007f35a49a76c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c3adf72 CR3: 000000006c632000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: fuse_dev_write+0x148/0x1d0 fs/fuse/dev.c:2076 new_sync_write fs/read_write.c:590 [inline] vfs_write+0xa6d/0xc90 fs/read_write.c:683 ksys_write+0x183/0x2b0 fs/read_write.c:736 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f35a3b7dff9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f35a49a7038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f35a3d36130 RCX: 00007f35a3b7dff9 RDX: 000000000000002b RSI: 0000000020000680 RDI: 0000000000000008 RBP: 00007f35a3bf0296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f35a3d36130 R15: 00007ffca3bd0188 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:zero_user_segments include/linux/highmem.h:269 [inline] RIP: 0010:folio_zero_range include/linux/highmem.h:641 [inline] RIP: 0010:fuse_notify_store fs/fuse/dev.c:1671 [inline] RIP: 0010:fuse_notify fs/fuse/dev.c:1908 [inline] RIP: 0010:fuse_dev_do_write+0x5d6d/0x5da0 fs/fuse/dev.c:1992 Code: c6 a0 11 41 8c e8 43 fc c9 fe 90 0f 0b e8 ab 55 7e fe 4c 89 ef 48 c7 c6 40 11 41 8c e8 2c fc c9 fe 90 0f 0b e8 94 55 7e fe 90 <0f> 0b e8 8c 55 7e fe eb 0c e8 85 55 7e fe eb c1 e8 7e 55 7e fe 4c RSP: 0018:ffffc9000492f860 EFLAGS: 00010283 RAX: ffffffff83168cbc RBX: 0000000000001001 RCX: 0000000000040000 RDX: ffffc90009cca000 RSI: 0000000000000b72 RDI: 0000000000000b73 RBP: ffffc9000492fbb0 R08: ffffffff8316685c R09: 1ffffd40003afa58 R10: dffffc0000000000 R11: fffff940003afa59 R12: 0000000000001000 R13: ffffea0001d7d2c0 R14: 1ffffd40003afa58 R15: 0000000000000001 FS: 00007f35a49a76c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c2a32db CR3: 000000006c632000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400