Red Hat Security AdvisoryRHSA-2026:63128
kernel security update
Released 2026-09-04 · Red Hat rating Important · View on Red Hat →
Fixed in
- Red Hat Enterprise Linux AppStream (v. 10) kernel-64k-debug-devel-6.12.0-211.51.1.el10_2, kernel-64k-debug-devel-matched-6.12.0-211.51.1.el10_2, kernel-64k-devel-6.12.0-211.51.1.el10_2 +12
- Red Hat Enterprise Linux BaseOS (v. 10) kernel-6.12.0-211.51.1.el10_2, kernel-64k-6.12.0-211.51.1.el10_2, kernel-64k-core-6.12.0-211.51.1.el10_2 +29
- Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) kernel-tools-libs-devel-6.12.0-211.51.1.el10_2, libperf-6.12.0-211.51.1.el10_2
- Red Hat Enterprise Linux Real Time (v. 10) kernel-rt-6.12.0-211.51.1.el10_2, kernel-rt-64k-6.12.0-211.51.1.el10_2, kernel-rt-64k-core-6.12.0-211.51.1.el10_2 +21
- Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt-6.12.0-211.51.1.el10_2, kernel-rt-core-6.12.0-211.51.1.el10_2, kernel-rt-debug-6.12.0-211.51.1.el10_2 +9
Fixes 6 records
Priority MEDIUM 49
In the Linux kernel, the following vulnerability has been resolved: net: ipv6: clear suppressed fib6 rule result fib6_rule_suppress() drops a suppressed route with ip6_rt_put_flags(), but leaves res->rt6 pointing at the…
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.00421 · Published 2026-08-21 · Partial fix · 5.10.265, 5.15.216 +7
Priority MEDIUM 49
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix query directory replay double-free A response-bearing attempt can return a replayable error and free its response buffer.
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.00457 · Published 2026-07-25 · Fixed in 6.6.145, 6.12.96 +3 CWE-415
Priority MEDIUM 49
In the Linux kernel, the following vulnerability has been resolved: exfat: fix potential use-after-free in exfat_find_dir_entry() In exfat_find_dir_entry(), the buffer_head obtained from exfat_get_dentry() is released wi…
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.00527 · Published 2026-07-19 · Partial fix · 5.10.260, 5.15.211 +6 CWE-416
Priority LOW 35
In the Linux kernel, the following vulnerability has been resolved: iomap: fix out-of-bounds bitmap_set() with zero-length range ifs_set_range_dirty() and ifs_set_range_uptodate() compute last_blk as (off + len - 1) >> i…
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00138 · Published 2026-08-10 · Fixed in 6.6.153, 6.12.101 +3 CWE-190
Priority LOW 35
In the Linux kernel, the following vulnerability has been resolved: KEYS: fix overflow in keyctl_pkey_params_get_2() The length for the internal output buffer is calculated incorrectly, which can result overflow when a t…
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00169 · Published 2026-07-19 · Partial fix · 5.10.260, 5.15.211 +6 CWE-787
Priority LOW 24
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_ldisc: Clear HCI_UART_PROTO_INIT on error When hci_register_dev() fails in hci_uart_register_dev() HCI_UART_PROTO_INIT is not cleared bef…
CVSS 3.1MEDIUM 5.5· Local · Low privileges · No interaction · EPSS 0.00114 · Published 2026-06-24 · Partial fix · 5.10.258, 5.15.209 +9 CWE-476
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