Hello, This crash can still be triggered repeatedly on the latest kernel. HEAD commit: 60a9483534ed Merge tag 'warning-fixes-20211005' git tree: upstream kernel config: https://drive.google.com/file/d/1u-ncYGLkq3xqdlNQYJz8-G6Fhf3H-moP/view?usp=sharing ------------[ cut here ]------------ kernel BUG at fs/buffer.c:1514! invalid opcode: 0000 [#1] PREEMPT SMP CPU: 3 PID: 25416 Comm: syz-executor Not tainted 5.15.0-rc4+ #22 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 RIP: 0010:block_invalidatepage+0x27f/0x2a0 fs/buffer.c:1514 Code: ff ff e8 b4 fd d6 ff b9 02 00 00 00 be 02 00 00 00 4c 89 ff 48 c7 c2 40 b1 25 84 e8 8b 1b c5 02 e9 c9 fe ff ff e8 91 fd d6 ff <0f> 0b e8 8a fd d6 ff 0f 0b e8 83 fd d6 ff 48 8d 5d ff e9 57 ff ff RSP: 0018:ffffc9000538fa70 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffffea0004518000 RCX: 0000000000000000 RDX: ffff88810dd2a280 RSI: ffffffff8160943f RDI: ffffea0004518000 RBP: ffffea0004518000 R08: 0000000000000001 R09: 0000000000000000 R10: ffffc9000538f908 R11: 0000000000000001 R12: ffffffff816091c0 R13: ffffc9000538fb78 R14: 0000000000000000 R15: ffffc9000538fb00 FS: 0000000000000000(0000) GS:ffff88813dd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020590008 CR3: 000000000588a000 CR4: 0000000000750ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 PKRU: 55555554 Call Trace: do_invalidatepage mm/truncate.c:157 [inline] truncate_cleanup_page+0x15c/0x280 mm/truncate.c:176 truncate_inode_pages_range+0x169/0xc20 mm/truncate.c:325 kill_bdev.isra.16+0x28/0x30 block/bdev.c:77 blkdev_flush_mapping+0x4c/0x130 block/bdev.c:658 blkdev_put_whole+0x54/0x60 block/bdev.c:689 blkdev_put+0x6f/0x210 block/bdev.c:953 blkdev_close+0x26/0x30 block/fops.c:460 __fput+0xdf/0x380 fs/file_table.c:280 task_work_run+0x86/0xd0 kernel/task_work.c:164 exit_task_work include/linux/task_work.h:32 [inline] do_exit+0x4f1/0x11c0 kernel/exit.c:825 do_group_exit+0x57/0xe0 kernel/exit.c:922 get_signal+0x1d0/0x10b0 kernel/signal.c:2868 arch_do_signal_or_restart+0xa9/0x860 arch/x86/kernel/signal.c:865 handle_signal_work kernel/entry/common.c:148 [inline] exit_to_user_mode_loop kernel/entry/common.c:172 [inline] exit_to_user_mode_prepare+0xf2/0x280 kernel/entry/common.c:207 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline] syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300 do_syscall_64+0x40/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4196af Code: Unable to access opcode bytes at RIP 0x419685. RSP: 002b:00007faeee07b9c0 EFLAGS: 00000293 ORIG_RAX: 0000000000000012 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 00000000004196af RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000003 R15: 000000002059c040 Modules linked in: Dumping ftrace buffer: (ftrace buffer empty) ---[ end trace bb86c370c06fa387 ]--- RIP: 0010:block_invalidatepage+0x27f/0x2a0 fs/buffer.c:1514 Code: ff ff e8 b4 fd d6 ff b9 02 00 00 00 be 02 00 00 00 4c 89 ff 48 c7 c2 40 b1 25 84 e8 8b 1b c5 02 e9 c9 fe ff ff e8 91 fd d6 ff <0f> 0b e8 8a fd d6 ff 0f 0b e8 83 fd d6 ff 48 8d 5d ff e9 57 ff ff RSP: 0018:ffffc9000538fa70 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffffea0004518000 RCX: 0000000000000000 RDX: ffff88810dd2a280 RSI: ffffffff8160943f RDI: ffffea0004518000 RBP: ffffea0004518000 R08: 0000000000000001 R09: 0000000000000000 R10: ffffc9000538f908 R11: 0000000000000001 R12: ffffffff816091c0 R13: ffffc9000538fb78 R14: 0000000000000000 R15: ffffc9000538fb00 FS: 0000000000000000(0000) GS:ffff88813dd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f397f798010 CR3: 0000000012392000 CR4: 0000000000750ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 PKRU: 55555554
