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Red Hat Security Advisory

RHSA-2025:21112

kernel security update

Released 2025-11-12 · Red Hat rating Moderate · View on Red Hat →

Fixed in

Fixes 13 records

Priority MEDIUM 50

In the Linux kernel, the following vulnerability has been resolved: sunrpc: fix handling of server side tls alerts Scott Mayhew discovered a security exploit in NFS over TLS in tls_alert_recv() due to its assumption it c…

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00633 Published 2025-08-19 Partial fix · 6.6.102, 6.12.42 +3 CWE-754
Priority MEDIUM 49

In the Linux kernel, the following vulnerability has been resolved: ipv6: sr: Fix MAC comparison to be constant-time To prevent timing attacks, MACs need to be compared in constant time.

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00449 Published 2025-09-05 Partial fix · 5.10.249, 5.15.190 +5 CWE-203
Priority MEDIUM 43

In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Fix buffer free/clear order in deferred receive path Fix a use-after-free window by correcting the buffer release sequence in the deferred r…

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00481 Published 2025-09-19 Partial fix · 5.4.299, 5.10.243 +6 CWE-787
Priority MEDIUM 42

In the Linux kernel, the following vulnerability has been resolved: sunrpc: fix client side handling of tls alerts A security exploit was discovered in NFS over TLS in tls_alert_recv due to its assumption that there is v…

CVSS 3.1HIGH 8.2 Network No auth No interaction EPSS 0.00348 Published 2025-08-19 Partial fix · 6.6.102, 6.12.42 +3
Priority LOW 39

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: sme: cap SSID length in __cfg80211_connect_result() If the ssid->datalen is more than IEEE80211_MAX_SSID_LEN (32) it would lead to memor…

CVSS 3.1HIGH 8.8 Adjacent network No auth No interaction EPSS 0.00222 Published 2025-09-19 Partial fix · 6.1.151, 6.3 +4 CWE-787
Priority LOW 38

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: Validate length in packet header before skb_put() When receiving a vsock packet in the guest, only the virtqueue buffer size is validated…

CVSS 3.1HIGH 8.4 Local No auth No interaction EPSS 0.00167 Published 2025-09-05 Partial fix · 6.1.149, 6.6.103 +3 CWE-787
TI-2023-29663 CVE-2023-53373 · GHSA-gxr7-4mfg-37c7

crypto: seqiv - Handle EBUSY correctly

Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: crypto: seqiv - Handle EBUSY correctly As it is seqiv only handles the special return value of EINPROGERSS, which means that in all other cases it will…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00165 Published 2025-09-18 Partial fix · 4.14.308, 4.19.276 +6 CWE-416
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: pstore/ram: Check start of empty przs during init After commit 30696378f68a ("pstore/ram: Do not treat empty buffers as valid"), initialization would as…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00161 Published 2025-09-16 Partial fix · 4.14.326, 4.19.295 +11 CWE-787
TI-2022-25849 CVE-2022-50367 · GHSA-4hcm-79j9-x472

fs: fix UAF/GPF bug in nilfs_mdt_destroy

Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: fs: fix UAF/GPF bug in nilfs_mdt_destroy In alloc_inode, inode_init_always() could return -ENOMEM if security_inode_alloc() fails, which causes inode->i…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00225 Published 2025-09-17 Partial fix · 4.9.331, 4.14.296 +7 CWE-416
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: firmware: arm_scpi: Ensure scpi_info is not assigned if the probe fails When scpi probe fails, at any point, we need to ensure that the scpi_info is not…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00199 Published 2025-06-18 Partial fix · 4.19.256, 5.4.211 +5 CWE-416
TI-2023-29783 CVE-2023-53494 · GHSA-3646-gh58-xhcx

crypto: xts - Handle EBUSY correctly

Priority LOW 33

In the Linux kernel, the following vulnerability has been resolved: crypto: xts - Handle EBUSY correctly As it is xts only handles the special return value of EINPROGRESS, which means that in all other cases it will free…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00164 Published 2025-10-01 Partial fix · 5.10.173, 5.15.99 +3 CWE-416
Priority LOW 30

In the Linux kernel, the following vulnerability has been resolved: efivarfs: Fix slab-out-of-bounds in efivarfs_d_compare Observed on kernel 6.6 (present on master as well): BUG: KASAN: slab-out-of-bounds in memcmp+0x98…

CVSS 3.1HIGH 7.1 Local Low privileges No interaction EPSS 0.00167 Published 2025-09-16 Partial fix · 3.9, 5.4.298 +7 CWE-125
TI-2025-26970 CVE-2025-40300 · GHSA-x8qw-46ww-c957

x86/vmscape: Add conditional IBPB mitigation

Priority LOW 25

In the Linux kernel, the following vulnerability has been resolved: x86/vmscape: Add conditional IBPB mitigation VMSCAPE is a vulnerability that exploits insufficient branch predictor isolation between a guest and a user…

CVSS 3.1MEDIUM 5.5 Local Low privileges No interaction EPSS 0.00378 Published 2025-09-11 Partial fix · 3.17, 4.5 +7