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================================================================== BUG: KCSAN: data-race in __ext4_update_other_inode_time / ext4_unlink write to 0xffff8880a676e870 of 8 bytes by task 23863 on cpu 0: ext4_unlink+0x7b4/0x9e0 fs/ext4/namei.c:3251 vfs_unlink+0x232/0x3c0 fs/namei.c:3832 do_unlinkat+0x28a/0x4d0 fs/namei.c:3896 __do_sys_unlink fs/namei.c:3942 [inline] __se_sys_unlink fs/namei.c:3940 [inline] __x64_sys_unlink+0x2c/0x30 fs/namei.c:3940 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffff8880a676e870 of 8 bytes by task 25345 on cpu 1: ext4_encode_extra_time fs/ext4/ext4.h:882 [inline] __ext4_update_other_inode_time+0x14f/0x570 fs/ext4/inode.c:4908 ext4_update_other_inodes_time fs/ext4/inode.c:4940 [inline] ext4_do_update_inode fs/ext4/inode.c:5068 [inline] ext4_mark_iloc_dirty+0x1296/0x1660 fs/ext4/inode.c:5624 __ext4_mark_inode_dirty+0x448/0x630 fs/ext4/inode.c:5818 ext4_dirty_inode+0xa6/0xc0 fs/ext4/inode.c:5854 __mark_inode_dirty+0x72/0x7f0 fs/fs-writeback.c:2260 mark_inode_dirty include/linux/fs.h:2169 [inline] dquot_alloc_space include/linux/quotaops.h:320 [inline] dquot_alloc_block include/linux/quotaops.h:337 [inline] ext4_mb_new_blocks+0x7c8/0xcf0 fs/ext4/mballoc.c:4882 ext4_ext_map_blocks+0x164e/0x20c0 fs/ext4/extents.c:4238 ext4_map_blocks+0x6bf/0xf40 fs/ext4/inode.c:625 ext4_iomap_alloc fs/ext4/inode.c:3401 [inline] ext4_iomap_begin+0x46e/0x5f0 fs/ext4/inode.c:3440 iomap_apply+0x8b/0x540 fs/iomap/apply.c:46 iomap_dio_rw+0x434/0x980 fs/iomap/direct-io.c:506 ext4_dio_write_iter fs/ext4/file.c:548 [inline] ext4_file_write_iter+0xdd5/0x1060 fs/ext4/file.c:658 call_write_iter include/linux/fs.h:1882 [inline] do_iter_readv_writev+0x32e/0x3d0 fs/read_write.c:721 do_iter_write+0x112/0x4b0 fs/read_write.c:1026 vfs_iter_write+0x4c/0x70 fs/read_write.c:1067 iter_file_splice_write+0x41a/0x770 fs/splice.c:770 do_splice_from fs/splice.c:866 [inline] direct_splice_actor+0x95/0x160 fs/splice.c:1036 splice_direct_to_actor+0x365/0x660 fs/splice.c:991 do_splice_direct+0xf2/0x170 fs/splice.c:1079 do_sendfile+0x56a/0xba0 fs/read_write.c:1548 __do_sys_sendfile64 fs/read_write.c:1609 [inline] __se_sys_sendfile64 fs/read_write.c:1595 [inline] __x64_sys_sendfile64+0xf2/0x130 fs/read_write.c:1595 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 25345 Comm: syz-executor.5 Not tainted 5.9.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2020/10/12 22:42 | upstream | 1e6d1d96461e | d32b0bbf | .config | console log | report | info | ci2-upstream-kcsan-gce | ||||
2020/09/11 03:20 | upstream | 581cb3a26baf | ac7ca78e | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2020/09/05 21:15 | upstream | 9322c47b21b9 | abf9ba4f | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2020/08/11 20:15 | upstream | 00e4db51259a | 5d3ebca9 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2020/08/05 23:04 | upstream | fffe3ae0ee84 | 0487ea6f | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2020/07/29 19:54 | upstream | 6ba1b005ffc3 | 233283a1 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2020/07/26 02:11 | upstream | 04300d66f0a0 | 1f7cc1ca | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2020/07/04 15:51 | upstream | 35e884f89df4 | 4f739670 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2020/06/29 14:28 | upstream | 9ebcfadb0610 | df01f6fc | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2020/06/27 23:03 | upstream | 6116dea80dfd | a2cdad9d | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2020/06/27 06:39 | upstream | 1590a2e1c681 | ffec44b5 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2020/06/26 03:17 | upstream | 4a21185cda0f | aea82c00 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2020/06/25 14:01 | upstream | 8be3a53e18e0 | c7b4497a | .config | console log | report | ci2-upstream-kcsan-gce |