In the Linux kernel, the following vulnerability has been resolved:
iio: pressure: bmp280: fix stack leak in bmp580 trigger handler
bmp580_trigger_handler() declares its scan buffer on the stack without
an initializer and then memcpy()s 3 bytes of 24-bit sensor data into
each 4-byte __le32 field. The high byte of comp_temp and comp_press is
left uninitialized, and the channel storagebits is 32, so two bytes of
stack are pushed to userspace per scan.
This is a regression from when the buffer lived in the private data, the
move to a stack-local struct dropped the implicit zeroing.
bme280_trigger_handler() was fixed up to handle this bug, but this
driver was not fixed because there was no padding hole, but rather a
short-fill issue.
Fix this all by just zero-initializing the structure on the stack.
References
Configurations
Configuration 1 (hide)
|
History
30 Oct 2026, 17:28
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.1:rc5:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:* |
|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| CWE | CWE-401 | |
| First Time |
Linux linux Kernel
Linux |
|
| References | () https://git.kernel.org/stable/c/387c86b582e0782ab332e7bfcd4e6e3f93922961 - Patch | |
| References | () https://git.kernel.org/stable/c/58dfb6fe9dc80270cf7cc014837af4cbf928e3aa - Patch | |
| References | () https://git.kernel.org/stable/c/a58400f58f82f3d8de9c067aa7cda690228c1ecc - Patch |
Information
Published : 2026-07-19 16:17
Updated : 2026-10-30 17:28
NVD link : CVE-2026-63965
Mitre link : CVE-2026-63965
CVE.ORG link : CVE-2026-63965
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-401
Missing Release of Memory after Effective Lifetime