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================================================================== BUG: KCSAN: data-race in mem_cgroup_track_foreign_dirty_slowpath / mem_cgroup_track_foreign_dirty_slowpath write to 0xffff8881150e9530 of 8 bytes by task 6917 on cpu 1: mem_cgroup_track_foreign_dirty_slowpath+0x3b3/0x440 mem_cgroup_track_foreign_dirty include/linux/memcontrol.h:1583 [inline] folio_account_dirtied mm/page-writeback.c:2754 [inline] __folio_mark_dirty+0x3f5/0x4e0 mm/page-writeback.c:2797 mark_buffer_dirty+0x148/0x250 fs/buffer.c:1201 __block_commit_write fs/buffer.c:2194 [inline] block_page_mkwrite+0x29c/0x3f0 fs/buffer.c:2638 ext4_page_mkwrite+0x73a/0xb70 fs/ext4/inode.c:6150 do_page_mkwrite mm/memory.c:3159 [inline] do_shared_fault mm/memory.c:5150 [inline] do_fault mm/memory.c:5212 [inline] do_pte_missing mm/memory.c:3964 [inline] handle_pte_fault mm/memory.c:5538 [inline] __handle_mm_fault mm/memory.c:5681 [inline] handle_mm_fault+0x135a/0x2a20 mm/memory.c:5849 do_user_addr_fault arch/x86/mm/fault.c:1338 [inline] handle_page_fault arch/x86/mm/fault.c:1481 [inline] exc_page_fault+0x3b9/0x650 arch/x86/mm/fault.c:1539 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 read to 0xffff8881150e9530 of 8 bytes by task 6920 on cpu 0: mem_cgroup_track_foreign_dirty_slowpath+0xdb/0x440 mm/memcontrol.c:3288 mem_cgroup_track_foreign_dirty include/linux/memcontrol.h:1583 [inline] folio_account_dirtied mm/page-writeback.c:2754 [inline] __folio_mark_dirty+0x3f5/0x4e0 mm/page-writeback.c:2797 mark_buffer_dirty+0x148/0x250 fs/buffer.c:1201 __block_commit_write fs/buffer.c:2194 [inline] block_write_end+0x123/0x210 fs/buffer.c:2270 ext4_da_do_write_end fs/ext4/inode.c:3029 [inline] ext4_da_write_end+0x1ff/0x7e0 fs/ext4/inode.c:3101 generic_perform_write+0x33c/0x4a0 mm/filemap.c:4040 ext4_buffered_write_iter+0x1ea/0x370 fs/ext4/file.c:299 ext4_file_write_iter+0x293/0xe10 new_sync_write fs/read_write.c:590 [inline] vfs_write+0x76a/0x910 fs/read_write.c:683 ksys_write+0xeb/0x1b0 fs/read_write.c:736 __do_sys_write fs/read_write.c:748 [inline] __se_sys_write fs/read_write.c:745 [inline] __x64_sys_write+0x42/0x50 fs/read_write.c:745 x64_sys_call+0x27dd/0x2d60 arch/x86/include/generated/asm/syscalls_64.h:2 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: 0x00000000ffffaf96 -> 0x00000000ffffaffe Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 6920 Comm: syz.4.600 Not tainted 6.11.0-syzkaller-02574-ga430d95c5efa #0 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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/09/17 15:39 | upstream | a430d95c5efa | c673ca06 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in mem_cgroup_track_foreign_dirty_slowpath / mem_cgroup_track_foreign_dirty_slowpath |