slstatus

commit 98769dfed7266b5a9959162e03bee1ddfaf5ecb4
parent 4f61bbbd8e9278c75f29e7853ae8922717261d2d
Author: drkhsh <me@drkhsh.at>
Date:   Thu, 12 Feb 2026 22:52:21 +0100

fix buffer overflow in battery state parsing

"Not charging" is 12 characters; %12[a-zA-Z ] reads up to 12 chars
plus a NUL terminator (13 bytes) into a 12-byte buffer. Increase
state buffer to 13 in both battery_state and battery_remaining.

Diffstat:
M
components/battery.c
 | 
4
++--

1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/components/battery.c b/components/battery.c
@@ -62,7 +62,7 @@
 			{ "Not charging", "o" },
 		};
 		size_t i;
-		char path[PATH_MAX], state[12];
+		char path[PATH_MAX], state[13];
 
 		if (esnprintf(path, sizeof(path), POWER_SUPPLY_STATUS, bat) < 0)
 			return NULL;
@@ -81,7 +81,7 @@
 	{
 		uintmax_t charge_now, current_now, m, h;
 		double timeleft;
-		char path[PATH_MAX], state[12];
+		char path[PATH_MAX], state[13];
 
 		if (esnprintf(path, sizeof(path), POWER_SUPPLY_STATUS, bat) < 0)
 			return NULL;