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================================================================== BUG: KCSAN: data-race in assoc_array_apply_edit / search_nested_keyrings write to 0xffff888135100610 of 8 bytes by task 26004 on cpu 1: assoc_array_apply_edit+0x3e/0x660 lib/assoc_array.c:1356 __key_link+0x8a/0xc0 security/keys/keyring.c:1372 __key_instantiate_and_link+0x15b/0x290 security/keys/key.c:459 key_create_or_update+0x760/0x9a0 security/keys/key.c:941 __do_sys_add_key security/keys/keyctl.c:134 [inline] __se_sys_add_key+0x280/0x310 security/keys/keyctl.c:74 __x64_sys_add_key+0x63/0x70 security/keys/keyctl.c:74 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 0xffff888135100610 of 8 bytes by task 26003 on cpu 0: search_nested_keyrings+0x36f/0x940 security/keys/keyring.c:751 keyring_search_rcu+0xf4/0x180 security/keys/keyring.c:922 search_cred_keyrings_rcu+0x193/0x240 security/keys/process_keys.c:501 search_process_keyrings_rcu security/keys/process_keys.c:544 [inline] lookup_user_key+0xaeb/0xd80 security/keys/process_keys.c:762 __do_sys_add_key security/keys/keyctl.c:126 [inline] __se_sys_add_key+0x24b/0x310 security/keys/keyctl.c:74 __x64_sys_add_key+0x63/0x70 security/keys/keyctl.c:74 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 value changed: 0xffff888102c44802 -> 0xffff888102c44502 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 26003 Comm: syz-executor.1 Not tainted 5.16.0-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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2022/01/10 05:31 | upstream | df0cc57e057f | 2ca0d385 | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in assoc_array_apply_edit / search_nested_keyrings | |||
2021/12/29 21:40 | upstream | e7c124bd0463 | 6cc879d4 | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in assoc_array_apply_edit / search_nested_keyrings | |||
2021/12/11 09:39 | upstream | 9e65da135b39 | 49ca1f59 | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in assoc_array_apply_edit / search_nested_keyrings |