CVE-2025-21649 — NULL Pointer Dereference in Linux
Severity
5.5MEDIUMNVD
OSV7.8OSV7.1OSV6.2
EPSS
0.0%
top 94.99%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedJan 19
Latest updateMay 29
Description
In the Linux kernel, the following vulnerability has been resolved:
net: hns3: fix kernel crash when 1588 is sent on HIP08 devices
Currently, HIP08 devices does not register the ptp devices, so the
hdev->ptp is NULL. But the tx process would still try to set hardware time
stamp info with SKBTX_HW_TSTAMP flag and cause a kernel crash.
[ 128.087798] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000018
...
[ 128.280251] pc : hclge_ptp_set_tx_info+0x2c/0x140 [hclge…
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6
Affected Packages5 packages
▶CVEListV5linux/linux0bf5eb788512187b744ef7f79de835e6cbe85b9c — f19ab3ef96d9626e5f1bdc56d3574c355e83d623+2