Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
Merge tag 'execve-v7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull execve updates from Kees Cook:
- use strnlen() in __set_task_comm (Thorsten Blum)
- update task_struct->comm comment (Thorsten Blum)
* tag 'execve-v7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
sched: update task_struct->comm comment
exec: use strnlen() in __set_task_comm
+4
-7
+1
-1
fs/exec.c
+1
-1
fs/exec.c
···
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*/
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void __set_task_comm(struct task_struct *tsk, const char *buf, bool exec)
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{
1077
-
size_t len = min(strlen(buf), sizeof(tsk->comm) - 1);
1077
+
size_t len = strnlen(buf, sizeof(tsk->comm) - 1);
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trace_task_rename(tsk, buf);
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1080
memcpy(tsk->comm, buf, len);
+3
-6
include/linux/sched.h
+3
-6
include/linux/sched.h
···
1163
1163
/*
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* executable name, excluding path.
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*
1166
-
* - normally initialized begin_new_exec()
1167
-
* - set it with set_task_comm()
1168
-
* - strscpy_pad() to ensure it is always NUL-terminated and
1169
-
* zero-padded
1170
-
* - task_lock() to ensure the operation is atomic and the name is
1171
-
* fully updated.
1166
+
* - normally initialized by begin_new_exec()
1167
+
* - set it with set_task_comm() to ensure it is always
1168
+
* NUL-terminated and zero-padded
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*/
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char comm[TASK_COMM_LEN];
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