Commit 26cc271db798cf211d35967cbfbb53e997126b84
Committed by
Ingo Molnar
Ingo Molnar
1 parent
929096fe9f
Exists in
master
and in
7 other branches
printk: fix discarding message when recursion_bug
Impact: fix truncated recursion bug message printout When recursion_bug is true, kernel discards original message because printk_buf contains recursion_bug_msg with NULL terminator. The sizeof(recursion_bug_msg) makes this, use strlen() to get correct length without NULL terminator. Reported-by: Toshikazu Nakayama <nakayama.ts@ncos.nec.co.jp> Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Showing 1 changed file with 1 additions and 1 deletions Side-by-side Diff
kernel/printk.c
| ... | ... | @@ -662,7 +662,7 @@ |
| 662 | 662 | if (recursion_bug) { |
| 663 | 663 | recursion_bug = 0; |
| 664 | 664 | strcpy(printk_buf, recursion_bug_msg); |
| 665 | - printed_len = sizeof(recursion_bug_msg); | |
| 665 | + printed_len = strlen(recursion_bug_msg); | |
| 666 | 666 | } |
| 667 | 667 | /* Emit the output into the temporary buffer */ |
| 668 | 668 | printed_len += vscnprintf(printk_buf + printed_len, |