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KCSAN: data-race in vfs_fsync_range / writeback_single_inode (4)

Status: auto-obsoleted due to no activity on 2023/06/05 02:12
Subsystems: exfat
[Documentation on labels]
First crash: 619d, last: 353d
Similar bugs (5)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KCSAN: data-race in vfs_fsync_range / writeback_single_inode (3) exfat 12 679d 791d 0/26 auto-closed as invalid on 2022/07/14 22:12
upstream KCSAN: data-race in vfs_fsync_range / writeback_single_inode (5) exfat 3 286d 305d 0/26 auto-obsoleted due to no activity on 2023/08/12 00:00
upstream KCSAN: data-race in vfs_fsync_range / writeback_single_inode (6) exfat 13 59d 131d 0/26 auto-obsoleted due to no activity on 2024/03/25 18:33
upstream KCSAN: data-race in vfs_fsync_range / writeback_single_inode exfat 12 1409d 1636d 0/26 closed as invalid on 2020/06/18 14:24
upstream KCSAN: data-race in vfs_fsync_range / writeback_single_inode (2) exfat 131 865d 1228d 0/26 auto-closed as invalid on 2022/01/09 20:31

Sample crash report:
==================================================================
BUG: KCSAN: data-race in vfs_fsync_range / writeback_single_inode

write to 0xffff888109a0e380 of 8 bytes by task 4633 on cpu 0:
 writeback_single_inode+0x10e/0x4a0 fs/fs-writeback.c:1721
 sync_inode_metadata+0x56/0x80 fs/fs-writeback.c:2780
 ext4_fsync_nojournal fs/ext4/fsync.c:92 [inline]
 ext4_sync_file+0x319/0x6e0 fs/ext4/fsync.c:161
 vfs_fsync_range+0x10b/0x120 fs/sync.c:188
 generic_write_sync include/linux/fs.h:2469 [inline]
 ext4_buffered_write_iter+0x397/0x3e0 fs/ext4/file.c:296
 ext4_file_write_iter+0xd7/0x10e0
 do_iter_write+0x4ae/0x770 fs/read_write.c:860
 vfs_iter_write+0x50/0x70 fs/read_write.c:901
 iter_file_splice_write+0x456/0x7d0 fs/splice.c:779
 do_splice_from fs/splice.c:857 [inline]
 direct_splice_actor+0x84/0xa0 fs/splice.c:1023
 splice_direct_to_actor+0x2ee/0x5f0 fs/splice.c:978
 do_splice_direct+0x104/0x180 fs/splice.c:1066
 do_sendfile+0x3b8/0x950 fs/read_write.c:1254
 __do_sys_sendfile64 fs/read_write.c:1322 [inline]
 __se_sys_sendfile64 fs/read_write.c:1308 [inline]
 __x64_sys_sendfile64+0x110/0x150 fs/read_write.c:1308
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

read to 0xffff888109a0e380 of 8 bytes by task 4629 on cpu 1:
 vfs_fsync_range+0x9c/0x120 fs/sync.c:186
 generic_write_sync include/linux/fs.h:2469 [inline]
 ext4_buffered_write_iter+0x397/0x3e0 fs/ext4/file.c:296
 ext4_file_write_iter+0xd7/0x10e0
 do_iter_write+0x4ae/0x770 fs/read_write.c:860
 vfs_iter_write+0x50/0x70 fs/read_write.c:901
 iter_file_splice_write+0x456/0x7d0 fs/splice.c:779
 do_splice_from fs/splice.c:857 [inline]
 direct_splice_actor+0x84/0xa0 fs/splice.c:1023
 splice_direct_to_actor+0x2ee/0x5f0 fs/splice.c:978
 do_splice_direct+0x104/0x180 fs/splice.c:1066
 do_sendfile+0x3b8/0x950 fs/read_write.c:1254
 __do_sys_sendfile64 fs/read_write.c:1322 [inline]
 __se_sys_sendfile64 fs/read_write.c:1308 [inline]
 __x64_sys_sendfile64+0x110/0x150 fs/read_write.c:1308
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

value changed: 0x0000000000000804 -> 0x0000000000000084

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 4629 Comm: syz-executor.4 Not tainted 6.3.0-syzkaller-12049-g58390c8ce1bd #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
==================================================================

Crashes (101):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/05/01 02:09 upstream 58390c8ce1bd 62df2017 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/03/29 10:42 upstream fcd476ea6a88 f325deb0 .config console log report info ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/02/22 14:59 upstream 5b7c4cabbb65 9f1e2cb3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/02/22 07:21 upstream 9e58df973d22 42a4d508 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/02/20 23:31 upstream 91bc559d8d3a 2414209c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/02/18 23:33 upstream 5e725d112e1a bcdf85f8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/02/18 21:31 upstream 5e725d112e1a d02e9a70 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/02/18 09:42 upstream 38f8ccde04a3 d02e9a70 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/02/17 19:22 upstream ec35307e18ba cf8c2d39 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/02/16 23:47 upstream 3ac88fa4605e 851bc19a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/02/15 17:10 upstream e1c04510f521 6be0f1f5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/02/14 21:47 upstream f6feea56f66d e62ba3c1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/02/14 16:22 upstream f6feea56f66d 93ae7e0a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/02/14 12:37 upstream b408817d4884 93ae7e0a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/02/13 22:16 upstream b408817d4884 957959cb .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/02/12 15:57 upstream f339c2597ebb 93e26d60 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/02/08 12:45 upstream 0983f6bf2bfc abbb67b7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/02/08 08:26 upstream 513c1a3d3f19 15c3d445 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/02/04 09:11 upstream 0136d86b7852 1b2f701a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/02/03 06:59 upstream e7368fd30165 33fc5c09 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/02/03 00:06 upstream e7368fd30165 16d19e30 .config console log report info ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/02/01 19:30 upstream c0b67534c95c 9a6f477c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/01/31 14:39 upstream 22b8077d0fce b68fb8d6 .config console log report info ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/01/30 13:32 upstream 6d796c50f84c b68fb8d6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/01/29 21:18 upstream ab072681eabe 9dfcf09c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/01/29 16:06 upstream c96618275234 9dfcf09c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/01/28 15:39 upstream 5af6ce704936 9dfcf09c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/01/26 10:13 upstream 7c46948a6e9c 9dfcf09c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/01/22 21:19 upstream 2475bf0250de cc0f9968 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/01/22 14:01 upstream 2241ab53cbb5 cc0f9968 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/01/21 00:48 upstream edc00350d205 cc0f9968 .config console log report info ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/01/20 10:31 upstream d368967cb103 dd15ff29 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/01/16 21:51 upstream d532dd102151 a63719e7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/01/15 14:06 upstream 7c6984405241 a63719e7 .config console log report info ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/01/13 17:57 upstream d9fc1511728c 529798b0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/01/11 16:49 upstream 7dd4b804e080 96166539 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/01/10 01:38 upstream 1fe4fd6f5cad 48bc529a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/01/09 03:28 upstream 1fe4fd6f5cad 1dac8c7a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/01/08 10:01 upstream 9b43a525db12 1dac8c7a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/01/05 07:26 upstream 512dee0c00ad 1dac8c7a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/01/04 10:06 upstream 69b41ac87e4a 1dac8c7a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/01/03 01:55 upstream 69b41ac87e4a ab32d508 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2023/01/02 21:50 upstream 88603b6dc419 ab32d508 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
2022/08/08 16:13 upstream 4e23eeebb2e5 da700653 .config console log report info ci2-upstream-kcsan-gce KCSAN: data-race in vfs_fsync_range / writeback_single_inode
* Struck through repros no longer work on HEAD.