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OpenAdvisories
Medium ALSA-2026:99031 10 CVEs

Moderate: kernel-rt security, bug fix, and enhancement update

Published Nov 11, 2026 · Updated Nov 13, 2026

Ecosystem: AlmaLinux

Summary

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

* kernel: drm/amdkfd: hold event_mutex while checkpointing CRIU events (CVE-2026-74446)
* kernel: drm/amdkfd: fix SMI event cross-process information leak (CVE-2026-97422)
* kernel: drm/amd/pm: bound pp_dpm_set_pp_table() memcpy (CVE-2026-97427)
* kernel: drm/amdkfd: Check bounds for allocate_sdma_queue restore_sdma_id (CVE-2026-97497)
* kernel: drm/amdgpu: validate and share PSP fw_pri_buf copies via psp_copy_fw (CVE-2026-97494)
* kernel: drm/amdkfd: Check bounds on allocate_doorbell (CVE-2026-97495)
* kernel: drm/amdgpu: Bound GPIO I2C table entry count from VBIOS (CVE-2026-97493)
* kernel: drm/amdgpu: fix buffer overflow during vBIOS update (CVE-2026-97425)
* kernel: net/smc: protect clcsock lifetime in smc_getname (CVE-2026-99032)
* kernel: kernel: Denial of Service via use-after-free race condition in SCSI tape driver (CVE-2026-99156)

Bug Fix(es) and Enhancement(s):

* soft lockup occurs during iomap_finish_ioends (JIRA:RHEL-258946)
* gfs2: BUG during withdraw [AlmaLinux-8] (JIRA:RHEL-298310)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Fixed packages 10

ReleasePackageFixed in
AlmaLinux · 8 kernel-rt 4.18.0-553.186.1.rt7.527.el8_10
AlmaLinux · 8 kernel-rt-core 4.18.0-553.186.1.rt7.527.el8_10
AlmaLinux · 8 kernel-rt-debug 4.18.0-553.186.1.rt7.527.el8_10
AlmaLinux · 8 kernel-rt-debug-core 4.18.0-553.186.1.rt7.527.el8_10
AlmaLinux · 8 kernel-rt-debug-devel 4.18.0-553.186.1.rt7.527.el8_10
AlmaLinux · 8 kernel-rt-debug-modules 4.18.0-553.186.1.rt7.527.el8_10
AlmaLinux · 8 kernel-rt-debug-modules-extra 4.18.0-553.186.1.rt7.527.el8_10
AlmaLinux · 8 kernel-rt-devel 4.18.0-553.186.1.rt7.527.el8_10
AlmaLinux · 8 kernel-rt-modules 4.18.0-553.186.1.rt7.527.el8_10
AlmaLinux · 8 kernel-rt-modules-extra 4.18.0-553.186.1.rt7.527.el8_10

Vulnerabilities 10

  • High 7.8
    CVE-2026-74446

    drm/amdkfd: hold event_mutex while checkpointing CRIU events

    In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: hold event_mutex while checkpointing CRIU events kfd_criu_checkpoint_events() counts the entries in p->event_idr via kfd_get_num_events(), allocates an array sized to that count, …

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.8
    CVE-2026-97497

    drm/amdkfd: Check bounds for allocate_sdma_queue restore_sdma_id

    In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Check bounds for allocate_sdma_queue restore_sdma_id allocate_sdma_queue has an option where the sdma queue id can be specified (used by CRIU). We weren't bounds-checking that val…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.8
    CVE-2026-99032

    net/smc: protect clcsock lifetime in smc_getname

    In the Linux kernel, the following vulnerability has been resolved: net/smc: protect clcsock lifetime in smc_getname smc_getname() dereferences smc->clcsock without holding clcsock_release_lock. Link-group termination can release the CLC socket through smc_cl…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.8
    CVE-2026-99156

    scsi: st: Fix use-after-free race between st_remove() and st_open()

    In the Linux kernel, the following vulnerability has been resolved: scsi: st: Fix use-after-free race between st_remove() and st_open() st_remove() drops the probe reference on the scsi_tape with kref_put() and only afterwards removes its index from st_index_…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Unscored —
    CVE-2026-97422

    drm/amdkfd: fix SMI event cross-process information leak

    In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: fix SMI event cross-process information leak kfd_smi_ev_enabled() skips the suser privilege check when pid=0. PROCESS_START, PROCESS_END, and VMFAULT events are emitted with pid=0…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Unscored —
    CVE-2026-97425

    drm/amdgpu: fix buffer overflow during vBIOS update

    In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix buffer overflow during vBIOS update Clamp the buffer postion to write by setting the bin attribute to the maximum buffer size so that VFS layer will block the out-of-bounds ac…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Unscored —
    CVE-2026-97427

    drm/amd/pm: bound pp_dpm_set_pp_table() memcpy

    In the Linux kernel, the following vulnerability has been resolved: drm/amd/pm: bound pp_dpm_set_pp_table() memcpy The powerplay path allocates hardcode_pp_table once with kmemdup(..., soft_pp_table_size). memcpy(..., size) used the sysfs store count (up to P…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Unscored —
    CVE-2026-97493

    drm/amdgpu: Bound GPIO I2C table entry count from VBIOS

    In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Bound GPIO I2C table entry count from VBIOS Reject undersized tables and cap the derived entry count to AMDGPU_MAX_I2C_BUS so we do not overrun adev->i2c_bus[] or walk an absurd n…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Unscored —
    CVE-2026-97494

    drm/amdgpu: validate and share PSP fw_pri_buf copies via psp_copy_fw

    In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: validate and share PSP fw_pri_buf copies via psp_copy_fw Change psp_copy_fw from void to int: return -ENODEV when drm_dev_enter fails, and -EINVAL when the image size is zero or l…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Unscored —
    CVE-2026-97495

    drm/amdkfd: Check bounds on allocate_doorbell

    In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Check bounds on allocate_doorbell allocated_doorbell has an option to set the doorbell id to a specific value (used by CRIU). This value was not bounds checked. Check to confirm i…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux

References

  • report
    https://access.redhat.com/security/cve/CVE-2026-74446
  • report
    https://access.redhat.com/security/cve/CVE-2026-97422
  • report
    https://access.redhat.com/security/cve/CVE-2026-97425
  • report
    https://access.redhat.com/security/cve/CVE-2026-97427
  • report
    https://access.redhat.com/security/cve/CVE-2026-97493
  • report
    https://access.redhat.com/security/cve/CVE-2026-97494
  • report
    https://access.redhat.com/security/cve/CVE-2026-97495
  • report
    https://access.redhat.com/security/cve/CVE-2026-97497
  • report
    https://access.redhat.com/security/cve/CVE-2026-99032
  • report
    https://access.redhat.com/security/cve/CVE-2026-99156
  • report
    https://bugzilla.redhat.com/2516963
  • report
    https://bugzilla.redhat.com/2540407
  • report
    https://bugzilla.redhat.com/2540425
  • report
    https://bugzilla.redhat.com/2540435
  • report
    https://bugzilla.redhat.com/2540448
  • report
    https://bugzilla.redhat.com/2540464
  • report
    https://bugzilla.redhat.com/2540475
  • report
    https://bugzilla.redhat.com/2540532
  • report
    https://bugzilla.redhat.com/2559710
  • report
    https://bugzilla.redhat.com/2562680
  • advisory
    https://errata.almalinux.org/8/ALSA-2026-99031.html