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================================================================== BUG: KCSAN: data-race in mem_cgroup_track_foreign_dirty_slowpath / mem_cgroup_track_foreign_dirty_slowpath write to 0xffff88812a063d70 of 8 bytes by task 1405 on cpu 1: mem_cgroup_track_foreign_dirty_slowpath+0x3ac/0x430 mem_cgroup_track_foreign_dirty include/linux/memcontrol.h:1606 [inline] folio_account_dirtied+0x438/0x450 mm/page-writeback.c:2459 __folio_mark_dirty+0x8e/0x130 mm/page-writeback.c:2499 __set_page_dirty include/linux/pagemap.h:1008 [inline] mark_buffer_dirty+0x159/0x390 fs/buffer.c:1105 __jbd2_journal_unfile_buffer fs/jbd2/transaction.c:2066 [inline] __jbd2_journal_refile_buffer+0x149/0x190 fs/jbd2/transaction.c:2594 jbd2_journal_commit_transaction+0x1a85/0x2480 fs/jbd2/commit.c:1071 kjournald2+0x1af/0x370 fs/jbd2/journal.c:213 kthread+0x1a9/0x1e0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 read to 0xffff88812a063d70 of 8 bytes by task 2689 on cpu 0: mem_cgroup_track_foreign_dirty_slowpath+0xd4/0x430 mm/memcontrol.c:4512 mem_cgroup_track_foreign_dirty include/linux/memcontrol.h:1606 [inline] folio_account_dirtied+0x438/0x450 mm/page-writeback.c:2459 __folio_mark_dirty+0x8e/0x130 mm/page-writeback.c:2499 __set_page_dirty include/linux/pagemap.h:1008 [inline] mark_buffer_dirty+0x159/0x390 fs/buffer.c:1105 __block_commit_write fs/buffer.c:2080 [inline] block_write_end+0x13d/0x240 fs/buffer.c:2159 generic_write_end+0x5d/0x230 fs/buffer.c:2173 fat_write_end+0x4a/0x150 fs/fat/inode.c:249 generic_perform_write+0x26a/0x3f0 mm/filemap.c:3798 __generic_file_write_iter+0xe3/0x280 mm/filemap.c:3915 generic_file_write_iter+0x75/0x130 mm/filemap.c:3947 do_iter_readv_writev+0x27b/0x300 do_iter_write+0x16f/0x5c0 fs/read_write.c:852 vfs_iter_write+0x4c/0x70 fs/read_write.c:893 iter_file_splice_write+0x44a/0x7c0 fs/splice.c:689 do_splice_from fs/splice.c:767 [inline] direct_splice_actor+0x80/0xa0 fs/splice.c:936 splice_direct_to_actor+0x345/0x660 fs/splice.c:891 do_splice_direct+0xfb/0x180 fs/splice.c:979 do_sendfile+0x3ad/0x900 fs/read_write.c:1246 __do_sys_sendfile64 fs/read_write.c:1305 [inline] __se_sys_sendfile64 fs/read_write.c:1297 [inline] __x64_sys_sendfile64+0xb9/0x150 fs/read_write.c:1297 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae value changed: 0x00000000ffffa663 -> 0x00000000ffffa90f Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 2689 Comm: syz-executor.1 Not tainted 5.18.0-rc3-syzkaller-00080-gd569e86915b7-dirty #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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2022/04/22 17:02 | upstream | d569e86915b7 | 131df97d | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in mem_cgroup_track_foreign_dirty_slowpath / mem_cgroup_track_foreign_dirty_slowpath |