Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in ext4_alloc_file_blocks / ext4_mpage_readpages ext4 | 1 | 1430d | 1430d | 0/26 | auto-closed as invalid on 2020/06/18 14:14 |
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Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in ext4_alloc_file_blocks / ext4_mpage_readpages ext4 | 1 | 1430d | 1430d | 0/26 | auto-closed as invalid on 2020/06/18 14:14 |
================================================================== BUG: KCSAN: data-race in ext4_alloc_file_blocks / ext4_mpage_readpages write to 0xffff88813dd07ac8 of 8 bytes by task 23674 on cpu 1: i_size_write include/linux/fs.h:913 [inline] ext4_update_inode_size fs/ext4/ext4.h:3422 [inline] ext4_alloc_file_blocks+0x362/0x730 fs/ext4/extents.c:4493 ext4_fallocate+0x2a7/0x540 fs/ext4/extents.c:4753 vfs_fallocate+0x486/0x720 fs/open.c:307 ksys_fallocate fs/open.c:330 [inline] __do_sys_fallocate fs/open.c:338 [inline] __se_sys_fallocate fs/open.c:336 [inline] __x64_sys_fallocate+0x75/0xc0 fs/open.c:336 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff88813dd07ac8 of 8 bytes by task 23673 on cpu 0: i_size_read include/linux/fs.h:891 [inline] ext4_readpage_limit fs/ext4/readpage.c:221 [inline] ext4_mpage_readpages+0x395/0x1080 fs/ext4/readpage.c:265 ext4_readahead+0x99/0xa0 fs/ext4/inode.c:3199 read_pages+0xba/0x5f0 mm/readahead.c:129 page_cache_ra_unbounded+0x3d2/0x430 mm/readahead.c:238 do_page_cache_ra+0xa7/0xc0 mm/readahead.c:268 do_sync_mmap_readahead+0x31c/0x370 mm/filemap.c:2996 filemap_fault+0x267/0xa10 mm/filemap.c:3089 __do_fault mm/memory.c:3849 [inline] do_shared_fault mm/memory.c:4219 [inline] do_fault mm/memory.c:4297 [inline] handle_pte_fault mm/memory.c:4551 [inline] __handle_mm_fault mm/memory.c:4686 [inline] handle_mm_fault+0xc78/0x1590 mm/memory.c:4784 do_user_addr_fault+0x609/0xbe0 arch/x86/mm/fault.c:1397 handle_page_fault arch/x86/mm/fault.c:1485 [inline] exc_page_fault+0x91/0x290 arch/x86/mm/fault.c:1541 asm_exc_page_fault+0x1e/0x30 value changed: 0x00000000003d0000 -> 0x0000000000400000 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 23673 Comm: syz-executor.3 Tainted: G W 5.16.0-rc1-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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2021/11/17 14:38 | upstream | 8ab774587903 | cafff8b6 | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in ext4_alloc_file_blocks / ext4_mpage_readpages | |||
2021/11/13 12:32 | upstream | 66f4beaa6c1d | 75b04091 | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in ext4_alloc_file_blocks / ext4_mpage_readpages |