Kernel | Title | Rank 🛈 | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in __bpf_lru_node_move / bpf_lru_push_free bpf | 6 | 1 | 1884d | 1884d | 0/29 | closed as invalid on 2020/06/18 14:24 |
syzbot |
sign-in | mailing list | source | docs |
Kernel | Title | Rank 🛈 | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in __bpf_lru_node_move / bpf_lru_push_free bpf | 6 | 1 | 1884d | 1884d | 0/29 | closed as invalid on 2020/06/18 14:24 |
================================================================== BUG: KCSAN: data-race in __bpf_lru_node_move / bpf_lru_push_free write to 0xffff88811902a022 of 1 bytes by task 13968 on cpu 0: __bpf_lru_node_move+0xdc/0x1f0 kernel/bpf/bpf_lru_list.c:116 __bpf_lru_list_rotate_active kernel/bpf/bpf_lru_list.c:-1 [inline] __bpf_lru_list_rotate+0xb4/0x270 kernel/bpf/bpf_lru_list.c:245 bpf_lru_list_pop_free_to_local kernel/bpf/bpf_lru_list.c:334 [inline] bpf_common_lru_pop_free kernel/bpf/bpf_lru_list.c:452 [inline] bpf_lru_pop_free+0x4ce/0xcd0 kernel/bpf/bpf_lru_list.c:504 prealloc_lru_pop kernel/bpf/hashtab.c:303 [inline] htab_lru_map_update_elem+0xc5/0x6f0 kernel/bpf/hashtab.c:1216 bpf_map_update_value+0x354/0x3a0 kernel/bpf/syscall.c:290 generic_map_update_batch+0x3f5/0x540 kernel/bpf/syscall.c:1982 bpf_map_do_batch+0x258/0x380 kernel/bpf/syscall.c:5344 __sys_bpf+0x2e0/0x790 kernel/bpf/syscall.c:-1 __do_sys_bpf kernel/bpf/syscall.c:5943 [inline] __se_sys_bpf kernel/bpf/syscall.c:5941 [inline] __x64_sys_bpf+0x41/0x50 kernel/bpf/syscall.c:5941 x64_sys_call+0x2478/0x2fb0 arch/x86/include/generated/asm/syscalls_64.h:322 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xd2/0x200 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f read to 0xffff88811902a022 of 1 bytes by task 13962 on cpu 1: bpf_lru_list_push_free kernel/bpf/bpf_lru_list.c:315 [inline] bpf_common_lru_push_free kernel/bpf/bpf_lru_list.c:538 [inline] bpf_lru_push_free+0x578/0x590 kernel/bpf/bpf_lru_list.c:561 htab_lru_push_free kernel/bpf/hashtab.c:1183 [inline] htab_lru_map_update_elem+0x59e/0x6f0 kernel/bpf/hashtab.c:1248 bpf_map_update_value+0x354/0x3a0 kernel/bpf/syscall.c:290 generic_map_update_batch+0x3f5/0x540 kernel/bpf/syscall.c:1982 bpf_map_do_batch+0x258/0x380 kernel/bpf/syscall.c:5344 __sys_bpf+0x2e0/0x790 kernel/bpf/syscall.c:-1 __do_sys_bpf kernel/bpf/syscall.c:5943 [inline] __se_sys_bpf kernel/bpf/syscall.c:5941 [inline] __x64_sys_bpf+0x41/0x50 kernel/bpf/syscall.c:5941 x64_sys_call+0x2478/0x2fb0 arch/x86/include/generated/asm/syscalls_64.h:322 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xd2/0x200 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f value changed: 0x00 -> 0x01 Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 13962 Comm: syz.7.2748 Not tainted 6.16.0-rc5-syzkaller-00025-gd006330be3f7 #0 PREEMPT(voluntary) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2025/07/08 23:10 | upstream | d006330be3f7 | 4d9fdfa4 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in __bpf_lru_node_move / bpf_lru_push_free | ||
2025/07/04 14:53 | upstream | 4c06e63b9203 | d869b261 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in __bpf_lru_node_move / bpf_lru_push_free |