Summary
The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* kernel: KVM: x86: Don't (re)check L1 intercepts when completing userspace I/O (CVE-2025-40026)
* kernel: xfrm single-frag length not properly limited
* kernel: dm log: fix out-of-bounds write due to region_count overflow (CVE-2026-53059)
* kernel: tipc: fix double-free in tipc_buf_append() (CVE-2026-52993)
Fixed packages 1
| Release | Package | Fixed in |
|---|---|---|
| Rocky Linux · 8 | kernel | 0:4.18.0-553.147.1.el8_10 |
Vulnerabilities 3
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Critical 9.8CVE-2026-52993 Public exploit
tipc: fix double-free in tipc_buf_append()
In the Linux kernel, the following vulnerability has been resolved: tipc: fix double-free in tipc_buf_append() tipc_msg_validate() can potentially reallocate the skb it is validating, freeing the old one. In tipc_buf_append(), it was being called with a point…
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High 7.9
KVM: x86: Don't (re)check L1 intercepts when completing userspace I/O
In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Don't (re)check L1 intercepts when completing userspace I/O When completing emulation of instruction that generated a userspace exit for I/O, don't recheck L1 intercepts as KVM has …
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Medium 6.3
dm log: fix out-of-bounds write due to region_count overflow
In the Linux kernel, the following vulnerability has been resolved: dm log: fix out-of-bounds write due to region_count overflow The local variable region_count in create_log_context() is declared as unsigned int (32-bit), but dm_sector_div_up() returns secto…