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AlmaLinux 9.6 [TuxCare] Security Update: kernel / kernel-64k / kernel-64k-core / kernel-64k-debug / etc Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2026:1793100968)

high Nessus Plugin ID 373062

Synopsis

The AlmaLinux host is missing one or more security updates.

Description

The AlmaLinux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1793100968 advisory.

 - In the Linux kernel, the following vulnerability has been resolved: udf: Avoid double brelse() in udf_rename() syzbot reported a warning like below [1]: VFS: brelse: Trying to free free buffer WARNING:
 CPU: 2 PID: 7301 at fs/buffer.c:1145 __brelse+0x67/0xa0 ... Call Trace: <TASK> invalidate_bh_lru+0x99/0x150 smp_call_function_many_cond+0xe2a/0x10c0 ? generic_remap_file_range_prep+0x50/0x50 ? __brelse+0xa0/0xa0 ? __mutex_lock+0x21c/0x12d0 ? smp_call_on_cpu+0x250/0x250 ? rcu_read_lock_sched_held+0xb/0x60 ? lock_release+0x587/0x810 ?
 __brelse+0xa0/0xa0 ? generic_remap_file_range_prep+0x50/0x50 on_each_cpu_cond_mask+0x3c/0x80 blkdev_flush_mapping+0x13a/0x2f0 blkdev_put_whole+0xd3/0xf0 blkdev_put+0x222/0x760 deactivate_locked_super+0x96/0x160 deactivate_super+0xda/0x100 cleanup_mnt+0x222/0x3d0 task_work_run+0x149/0x240 ? task_work_cancel+0x30/0x30 do_exit+0xb29/0x2a40 ? reacquire_held_locks+0x4a0/0x4a0 ? do_raw_spin_lock+0x12a/0x2b0 ? mm_update_next_owner+0x7c0/0x7c0 ? rwlock_bug.part.0+0x90/0x90 ? zap_other_threads+0x234/0x2d0 do_group_exit+0xd0/0x2a0
 __x64_sys_exit_group+0x3a/0x50 do_syscall_64+0x34/0xb0 entry_SYSCALL_64_after_hwframe+0x63/0xcd The cause of the issue is that brelse() is called on both ofibh.sbh and ofibh.ebh by udf_find_entry() when it returns NULL. However, brelse() is called by udf_rename(), too. So, b_count on buffer_head becomes unbalanced. This patch fixes the issue by not calling brelse() by udf_rename() when udf_find_entry() returns NULL. (CVE-2022-50755)

 - In the Linux kernel, the following vulnerability has been resolved: soc: qcom: qmi_encdec: Restrict string length in decode The QMI TLV value for strings in a lot of qmi element info structures account for null terminated strings with MAX_LEN + 1. If a string is actually MAX_LEN + 1 length, this will cause an out of bounds access when the NULL character is appended in decoding. (CVE-2023-53729)

 - In the Linux kernel, the following vulnerability has been resolved: can: isotp: check CAN address family in isotp_bind() Add missing check to block non-AF_CAN binds. Syzbot created some code which matched the right sockaddr struct size but used AF_XDP (0x2C) instead of AF_CAN (0x1D) in the address family field:
 bind$xdp(r2, &(0x7f0000000540)={0x2c, 0x0, r4, 0x0, r2}, 0x10) ^^^^ This has no funtional impact but the userspace should be notified about the wrong address family field content. (CVE-2023-54105)

 - In the Linux kernel, the following vulnerability has been resolved: usb: rndis_host: Secure rndis_query check against int overflow Variables off and len typed as uint32 in rndis_query function are controlled by incoming RNDIS response message thus their value may be manipulated. Setting off to a unexpectetly large value will cause the sum with len and 8 to overflow and pass the implemented validation step. Consequently the response pointer will be referring to a location past the expected buffer boundaries allowing information leakage e.g. via RNDIS_OID_802_3_PERMANENT_ADDRESS OID. (CVE-2023-54110)

 - In the Linux kernel, the following vulnerability has been resolved: mtd: spi-nor: Fix shift-out-of-bounds in spi_nor_set_erase_type spi_nor_set_erase_type() was used either to set or to mask out an erase type.
 When we used it to mask out an erase type a shift-out-of-bounds was hit: UBSAN: shift-out-of-bounds in drivers/mtd/spi-nor/core.c:2237:24 shift exponent 4294967295 is too large for 32-bit type 'int' The setting of the size_{shift, mask} and of the opcode are unnecessary when the erase size is zero, as throughout the code just the erase size is considered to determine whether an erase type is supported or not. Setting the opcode to 0xFF was wrong too as nobody guarantees that 0xFF is an unused opcode. Thus when masking out an erase type, just set the erase size to zero. This will fix the shift-out-of-bounds.
 [ta: refine changes, new commit message, fix compilation error] (CVE-2023-54295)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages based on the guidance in TuxCare advisory ALMALINUX9.6:CLSA-2026:1793100968.

See Also

https://cve.tuxcare.com/els/releases/CLSA-2026:1793100968

http://www.nessus.org/u?1bf95f24

Plugin Details

Severity: High

ID: 373062

File Name: tuxcare_alma_linux_9.6_CLSA-2026-1793100968.nasl

Version: 1.1

Type: Local

Published: 10/28/2026

Updated: 10/28/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.6

Percentile: 98.37

Vendor

Vendor Severity: Critical

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2026-64363

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Required KB Items: Host/OS/extended-third-party, Host/local_checks_enabled, Host/AlmaLinux/release, Host/AlmaLinux/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 10/27/2026

Vulnerability Publication Date: 7/21/2021

Reference Information

CVE: CVE-2022-50755, CVE-2023-53631, CVE-2023-53729, CVE-2023-54046, CVE-2023-54099, CVE-2023-54105, CVE-2023-54110, CVE-2023-54295, CVE-2024-53114, CVE-2025-21921, CVE-2025-23138, CVE-2025-23149, CVE-2025-37820, CVE-2025-37889, CVE-2025-37895, CVE-2025-37921, CVE-2025-38270, CVE-2025-38290, CVE-2025-38318, CVE-2025-38414, CVE-2025-38586, CVE-2025-38605, CVE-2025-39678, CVE-2025-39732, CVE-2025-39765, CVE-2025-39968, CVE-2025-39970, CVE-2025-39972, CVE-2025-39998, CVE-2025-40006, CVE-2025-40020, CVE-2025-40026, CVE-2025-40049, CVE-2025-40053, CVE-2025-40057, CVE-2025-40081, CVE-2025-40110, CVE-2025-40121, CVE-2025-40125, CVE-2025-40140, CVE-2025-40319, CVE-2025-40338, CVE-2025-40339, CVE-2025-40342, CVE-2025-40343, CVE-2025-40346, CVE-2025-68190, CVE-2025-68239, CVE-2025-68286, CVE-2025-68308, CVE-2025-68354, CVE-2025-68379, CVE-2025-68732, CVE-2025-68783, CVE-2025-68798, CVE-2025-71130, CVE-2025-71294, CVE-2026-100075, CVE-2026-23116, CVE-2026-23163, CVE-2026-23172, CVE-2026-23264, CVE-2026-23292, CVE-2026-23475, CVE-2026-31454, CVE-2026-31470, CVE-2026-31647, CVE-2026-31699, CVE-2026-31767, CVE-2026-43041, CVE-2026-43153, CVE-2026-43213, CVE-2026-43248, CVE-2026-43261, CVE-2026-43298, CVE-2026-43395, CVE-2026-43443, CVE-2026-43444, CVE-2026-43463, CVE-2026-43491, CVE-2026-45853, CVE-2026-45859, CVE-2026-45891, CVE-2026-45920, CVE-2026-45932, CVE-2026-45940, CVE-2026-45947, CVE-2026-45970, CVE-2026-45976, CVE-2026-46052, CVE-2026-46076, CVE-2026-46083, CVE-2026-46126, CVE-2026-46135, CVE-2026-46176, CVE-2026-52912, CVE-2026-52936, CVE-2026-52937, CVE-2026-52976, CVE-2026-53002, CVE-2026-53009, CVE-2026-53022, CVE-2026-53036, CVE-2026-53053, CVE-2026-53081, CVE-2026-53092, CVE-2026-53137, CVE-2026-53149, CVE-2026-53167, CVE-2026-53168, CVE-2026-53184, CVE-2026-53189, CVE-2026-53293, CVE-2026-53296, CVE-2026-53297, CVE-2026-53369, CVE-2026-53375, CVE-2026-53376, CVE-2026-53392, CVE-2026-63804, CVE-2026-63806, CVE-2026-63810, CVE-2026-63842, CVE-2026-63843, CVE-2026-63844, CVE-2026-63846, CVE-2026-63847, CVE-2026-63848, CVE-2026-63850, CVE-2026-63854, CVE-2026-63855, CVE-2026-63856, CVE-2026-63860, CVE-2026-63865, CVE-2026-63868, CVE-2026-63892, CVE-2026-63916, CVE-2026-63923, CVE-2026-63962, CVE-2026-63985, CVE-2026-63995, CVE-2026-63997, CVE-2026-63998, CVE-2026-64000, CVE-2026-64025, CVE-2026-64105, CVE-2026-64106, CVE-2026-64123, CVE-2026-64133, CVE-2026-64170, CVE-2026-64182, CVE-2026-64185, CVE-2026-64244, CVE-2026-64256, CVE-2026-64276, CVE-2026-64286, CVE-2026-64306, CVE-2026-64313, CVE-2026-64317, CVE-2026-64326, CVE-2026-64351, CVE-2026-64363, CVE-2026-64373, CVE-2026-64376, CVE-2026-64475, CVE-2026-64476, CVE-2026-64477, CVE-2026-64480, CVE-2026-64486, CVE-2026-64487, CVE-2026-64496, CVE-2026-64534, CVE-2026-64535, CVE-2026-64544, CVE-2026-64562, CVE-2026-68184, CVE-2026-68279, CVE-2026-68470, CVE-2026-72031, CVE-2026-72083, CVE-2026-72105, CVE-2026-72111, CVE-2026-72165, CVE-2026-72218, CVE-2026-72225, CVE-2026-72237, CVE-2026-72242, CVE-2026-72255, CVE-2026-72262, CVE-2026-72280, CVE-2026-72284, CVE-2026-72286, CVE-2026-72301, CVE-2026-72304, CVE-2026-72322, CVE-2026-72325, CVE-2026-72371, CVE-2026-72374, CVE-2026-72488, CVE-2026-72494, CVE-2026-72496, CVE-2026-72497, CVE-2026-72499, CVE-2026-72500, CVE-2026-74257, CVE-2026-74271, CVE-2026-74295, CVE-2026-74296, CVE-2026-74297, CVE-2026-74305, CVE-2026-74310, CVE-2026-74313, CVE-2026-74330, CVE-2026-74331, CVE-2026-74332, CVE-2026-74365, CVE-2026-74379, CVE-2026-74401, CVE-2026-74405, CVE-2026-74416, CVE-2026-74417, CVE-2026-74426, CVE-2026-74497, CVE-2026-74500, CVE-2026-74505, CVE-2026-74516, CVE-2026-74519, CVE-2026-74547, CVE-2026-74553, CVE-2026-74566, CVE-2026-74567, CVE-2026-74578, CVE-2026-74584, CVE-2026-74666, CVE-2026-74671, CVE-2026-74689, CVE-2026-74733, CVE-2026-74743, CVE-2026-80534, CVE-2026-80590, CVE-2026-80593, CVE-2026-80602, CVE-2026-80622, CVE-2026-80646, CVE-2026-80649, CVE-2026-80659, CVE-2026-80669, CVE-2026-80677, CVE-2026-80681, CVE-2026-80731, CVE-2026-80884, CVE-2026-80952, CVE-2026-80964, CVE-2026-80967, CVE-2026-80969, CVE-2026-80971, CVE-2026-80972, CVE-2026-81001, CVE-2026-81008, CVE-2026-89439, CVE-2026-89443, CVE-2026-89444, CVE-2026-89477, CVE-2026-89480, CVE-2026-89481, CVE-2026-89482, CVE-2026-89530, CVE-2026-89532, CVE-2026-89537, CVE-2026-89549, CVE-2026-89566, CVE-2026-89567, CVE-2026-89636, CVE-2026-89656, CVE-2026-89694, CVE-2026-89726, CVE-2026-89751, CVE-2026-89854, CVE-2026-89861, CVE-2026-89878, CVE-2026-89894, CVE-2026-89897, CVE-2026-89899, CVE-2026-89912, CVE-2026-89913, CVE-2026-89930, CVE-2026-89952, CVE-2026-89969, CVE-2026-89973, CVE-2026-89975, CVE-2026-89984, CVE-2026-89988, CVE-2026-90011, CVE-2026-90037, CVE-2026-90057, CVE-2026-90060, CVE-2026-90063, CVE-2026-90128, CVE-2026-90157, CVE-2026-90177, CVE-2026-90182, CVE-2026-90196, CVE-2026-90227, CVE-2026-90250, CVE-2026-90284, CVE-2026-90290, CVE-2026-90300, CVE-2026-90326, CVE-2026-90391, CVE-2026-90392, CVE-2026-90398, CVE-2026-90416, CVE-2026-90417, CVE-2026-90435, CVE-2026-92509, CVE-2026-93037, CVE-2026-93048, CVE-2026-93055, CVE-2026-93100, CVE-2026-93104, CVE-2026-93108, CVE-2026-93109, CVE-2026-93110, CVE-2026-93115, CVE-2026-93125, CVE-2026-93131, CVE-2026-93138, CVE-2026-93144, CVE-2026-93163, CVE-2026-93175, CVE-2026-93185, CVE-2026-93186, CVE-2026-93210, CVE-2026-93239, CVE-2026-93256, CVE-2026-93288, CVE-2026-93785, CVE-2026-93795, CVE-2026-93824, CVE-2026-93828, CVE-2026-97440, CVE-2026-97441, CVE-2026-97444, CVE-2026-97446, CVE-2026-97453, CVE-2026-97454, CVE-2026-97495, CVE-2026-97497, CVE-2026-97505, CVE-2026-97521, CVE-2026-97540, CVE-2026-97597, CVE-2026-97601, CVE-2026-97608, CVE-2026-97616, CVE-2026-97904, CVE-2026-97905, CVE-2026-97930, CVE-2026-97957, CVE-2026-97958, CVE-2026-97965, CVE-2026-97987, CVE-2026-97989, CVE-2026-97994, CVE-2026-97995, CVE-2026-98033, CVE-2026-98034, CVE-2026-98038, CVE-2026-98043, CVE-2026-98046, CVE-2026-98047, CVE-2026-98054, CVE-2026-98056, CVE-2026-98063, CVE-2026-98064, CVE-2026-98075, CVE-2026-98088, CVE-2026-98096, CVE-2026-98116, CVE-2026-98154, CVE-2026-98157, CVE-2026-98164, CVE-2026-98171, CVE-2026-98197, CVE-2026-98198, CVE-2026-98211, CVE-2026-98252, CVE-2026-98253, CVE-2026-98262, CVE-2026-98266, CVE-2026-98314, CVE-2026-98320, CVE-2026-98323, CVE-2026-98342, CVE-2026-98347, CVE-2026-98357, CVE-2026-98359, CVE-2026-98360, CVE-2026-98376, CVE-2026-98378, CVE-2026-98443, CVE-2026-98554, CVE-2026-98634, CVE-2026-98636, CVE-2026-98655, CVE-2026-98716, CVE-2026-98726, CVE-2026-98742, CVE-2026-98775, CVE-2026-98790, CVE-2026-98863

CLSA: 2026:1793100968