Title | Replies (including bot) | Last reply |
---|---|---|
[syzbot] [ext4?] KCSAN: data-race in redirty_tail_locked / vfs_fsync_range (2) | 0 (1) | 2024/09/09 19:00 |
syzbot |
sign-in | mailing list | source | docs |
Title | Replies (including bot) | Last reply |
---|---|---|
[syzbot] [ext4?] KCSAN: data-race in redirty_tail_locked / vfs_fsync_range (2) | 0 (1) | 2024/09/09 19:00 |
================================================================== BUG: KCSAN: data-race in redirty_tail_locked / vfs_fsync_range read-write to 0xffff888106aa1860 of 4 bytes by task 9346 on cpu 1: redirty_tail_locked+0x54/0x270 fs/fs-writeback.c:1351 writeback_single_inode+0x221/0x3f0 fs/fs-writeback.c:1799 sync_inode_metadata+0x5c/0x90 fs/fs-writeback.c:2849 generic_buffers_fsync_noflush+0xd8/0x120 fs/buffer.c:610 ext4_fsync_nojournal fs/ext4/fsync.c:88 [inline] ext4_sync_file+0x1ff/0x6c0 fs/ext4/fsync.c:151 vfs_fsync_range+0x116/0x130 fs/sync.c:188 generic_write_sync include/linux/fs.h:2870 [inline] ext4_buffered_write_iter+0x326/0x370 fs/ext4/file.c:305 ext4_file_write_iter+0x293/0xe10 iter_file_splice_write+0x5f1/0x980 fs/splice.c:743 do_splice_from fs/splice.c:941 [inline] direct_splice_actor+0x160/0x2c0 fs/splice.c:1164 splice_direct_to_actor+0x302/0x670 fs/splice.c:1108 do_splice_direct_actor fs/splice.c:1207 [inline] do_splice_direct+0xd7/0x150 fs/splice.c:1233 do_sendfile+0x39b/0x970 fs/read_write.c:1388 __do_sys_sendfile64 fs/read_write.c:1455 [inline] __se_sys_sendfile64 fs/read_write.c:1441 [inline] __x64_sys_sendfile64+0x110/0x150 fs/read_write.c:1441 x64_sys_call+0xed5/0x2d60 arch/x86/include/generated/asm/syscalls_64.h:41 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f read to 0xffff888106aa1860 of 4 bytes by task 9359 on cpu 0: vfs_fsync_range+0x9a/0x130 fs/sync.c:186 generic_write_sync include/linux/fs.h:2870 [inline] ext4_buffered_write_iter+0x326/0x370 fs/ext4/file.c:305 ext4_file_write_iter+0x293/0xe10 iter_file_splice_write+0x5f1/0x980 fs/splice.c:743 do_splice_from fs/splice.c:941 [inline] direct_splice_actor+0x160/0x2c0 fs/splice.c:1164 splice_direct_to_actor+0x302/0x670 fs/splice.c:1108 do_splice_direct_actor fs/splice.c:1207 [inline] do_splice_direct+0xd7/0x150 fs/splice.c:1233 do_sendfile+0x39b/0x970 fs/read_write.c:1388 __do_sys_sendfile64 fs/read_write.c:1455 [inline] __se_sys_sendfile64 fs/read_write.c:1441 [inline] __x64_sys_sendfile64+0x110/0x150 fs/read_write.c:1441 x64_sys_call+0xed5/0x2d60 arch/x86/include/generated/asm/syscalls_64.h:41 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f value changed: 0x0000003a -> 0x00000002 Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 9359 Comm: syz.0.1932 Tainted: G W 6.11.0-syzkaller-05319-g4a39ac5b7d62 #0 Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/09/19 04:53 | upstream | 4a39ac5b7d62 | c673ca06 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in redirty_tail_locked / vfs_fsync_range | ||
2024/09/14 09:44 | upstream | b7718454f937 | c7e35043 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in redirty_tail_locked / vfs_fsync_range | ||
2024/09/09 18:10 | upstream | da3ea35007d0 | 073f8be2 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in redirty_tail_locked / vfs_fsync_range |