In the Linux kernel, the following vulnerability has been resolved:
clocksource/drivers/timer-sp804: Fix an Oops when read_current_timer is called on ARM32 platforms where the SP804 is not registered as the sched_clock.
On SP804, the delay timer shares the same clkevt instance with
sched_clock. On some platforms, when
sp804_clocksource_and_sched_clock_init is called with use_sched_clock
not set to 1, sched_clkevt is not properly initialized. However,
sp804_register_delay_timer is invoked unconditionally, and
read_current_timer() subsequently calls sp804_read on an uninitialized
sched_clkevt, leading to a kernel Oops when accessing
sched_clkevt->value.
Declare a dedicated clkevt instance exclusively for delay timer,
instead of sharing the same clkevt with sched_clock. This ensures
that read_current_timer continues to work correctly regardless of
whether SP804 is selected as the sched_clock.
References
Configurations
History
09 Jun 2026, 20:10
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Linux linux Kernel
Linux |
|
| CWE | CWE-908 | |
| References | () https://git.kernel.org/stable/c/693b0b594b0f278bafa784984129c0c0f988e352 - Patch | |
| References | () https://git.kernel.org/stable/c/694921a93f3e3621e067afc545cedf6fe3b234a9 - Patch | |
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
03 Jun 2026, 18:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-06-03 18:16
Updated : 2026-06-09 20:10
NVD link : CVE-2026-46257
Mitre link : CVE-2026-46257
CVE.ORG link : CVE-2026-46257
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-908
Use of Uninitialized Resource