Improper locking in Linux kernel - CVE-2024-55642

Vulnerability identifier: #VU102939

CSH Severity: Low

CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2024-55642

CWE-ID: CWE-667

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper locking within the BLK_ZONE_WPLUG_PLUGGED(), blkdev_report_zones(), disk_put_zone_wplug(), disk_should_remove_zone_wplug(), INIT_HLIST_NODE(), disk_zone_wplug_abort(), disk_zone_wplug_sync_wp_offset(), blk_zone_wplug_handle_reset_or_finish(), blk_zone_wplug_handle_reset_all(), blk_zone_wplug_prepare_bio(), blk_zone_wplug_handle_write(), disk_zone_wplug_unplug_bio(), blk_zone_write_plug_bio_endio(), blk_zone_wplug_bio_work(), disk_zone_wplugs_hash_size(), disk_free_zone_resources(), blk_revalidate_seq_zone() and blk_revalidate_disk_zones() functions in block/blk-zoned.c. A local user can perform a denial of service (DoS) attack.

Linux kernel
Ubuntu
linux-image-6.11.0-21-generic-64k (Ubuntu package)
linux-image-virtual-hwe-24.04 (Ubuntu package)
linux-image-virtual (Ubuntu package)
linux-image-6.11.0-21-generic (Ubuntu package)
linux-image-generic-64k (Ubuntu package)
linux-image-oem-24.04a (Ubuntu package)
linux-image-oem-24.04 (Ubuntu package)
linux-image-generic-64k-hwe-24.04 (Ubuntu package)
linux-image-generic (Ubuntu package)
linux-image-generic-hwe-24.04 (Ubuntu package)
linux-image-6.11.0-1007-realtime (Ubuntu package)
linux-image-realtime (Ubuntu package)
linux-image-realtime-hwe-24.04 (Ubuntu package)
linux-image-6.11.0-1010-raspi (Ubuntu package)
linux-image-raspi (Ubuntu package)
linux-image-gcp-64k (Ubuntu package)
linux-image-gcp (Ubuntu package)
linux-image-6.11.0-1011-gcp-64k (Ubuntu package)
linux-image-6.11.0-1011-gcp (Ubuntu package)
linux-image-aws (Ubuntu package)
linux-image-6.11.0-1011-aws (Ubuntu package)
linux-image-lowlatency-64k (Ubuntu package)
linux-image-lowlatency (Ubuntu package)
linux-image-6.11.0-1011-lowlatency (Ubuntu package)
linux-image-6.11.0-1011-lowlatency-64k (Ubuntu package)
linux-image-lowlatency-64k-hwe-24.04 (Ubuntu package)
linux-image-lowlatency-hwe-24.04 (Ubuntu package)
linux-image-azure (Ubuntu package)
linux-image-6.11.0-1012-azure (Ubuntu package)
linux-image-6.11.0-1012-azure-fde (Ubuntu package)
linux-image-azure-fde (Ubuntu package)
linux-image-oracle (Ubuntu package)
linux-image-oracle-64k (Ubuntu package)
linux-image-6.11.0-1013-oracle (Ubuntu package)
linux-image-6.11.0-1013-oracle-64k (Ubuntu package)
linux-image-6.11.0-1017-oem (Ubuntu package)
linux-image-oem-24.04b (Ubuntu package)

Install update from vendor's website.

Linux kernel - addressed in versions 6.12.6, 6.13
linux-image-6.11.0-21-generic-64k (Ubuntu package) - addressed in versions 6.11.0-21.21, 6.11.0-21.21~24.04.1+1
linux-image-virtual-hwe-24.04 (Ubuntu package) - addressed in versions 6.11.0-21.21, 6.11.0-21.21~24.04.1
linux-image-virtual (Ubuntu package) - update to 6.11.0-21.21
linux-image-6.11.0-21-generic (Ubuntu package) - addressed in versions 6.11.0-21.21, 6.11.0-21.21~24.04.1+1
linux-image-generic-64k (Ubuntu package) - update to 6.11.0-21.21
linux-image-oem-24.04a (Ubuntu package) - update to 6.11.0-21.21
linux-image-oem-24.04 (Ubuntu package) - update to 6.11.0-21.21
linux-image-generic-64k-hwe-24.04 (Ubuntu package) - addressed in versions 6.11.0-21.21, 6.11.0-21.21~24.04.1
linux-image-generic (Ubuntu package) - update to 6.11.0-21.21
linux-image-generic-hwe-24.04 (Ubuntu package) - addressed in versions 6.11.0-21.21, 6.11.0-21.21~24.04.1
linux-image-6.11.0-1007-realtime (Ubuntu package) - update to 6.11.0-1007.7
linux-image-realtime (Ubuntu package) - update to 6.11.0-1007.7
linux-image-realtime-hwe-24.04 (Ubuntu package) - update to 6.11.0-1007.7
linux-image-6.11.0-1010-raspi (Ubuntu package) - update to 6.11.0-1010.10
linux-image-raspi (Ubuntu package) - update to 6.11.0-1010.10
linux-image-gcp-64k (Ubuntu package) - update to 6.11.0-1011.11
linux-image-gcp (Ubuntu package) - update to 6.11.0-1011.11
linux-image-6.11.0-1011-gcp-64k (Ubuntu package) - update to 6.11.0-1011.11
linux-image-6.11.0-1011-gcp (Ubuntu package) - update to 6.11.0-1011.11
linux-image-aws (Ubuntu package) - update to 6.11.0-1011.12
linux-image-6.11.0-1011-aws (Ubuntu package) - update to 6.11.0-1011.12
linux-image-lowlatency-64k (Ubuntu package) - update to 6.11.0-1011.12
linux-image-lowlatency (Ubuntu package) - update to 6.11.0-1011.12
linux-image-6.11.0-1011-lowlatency (Ubuntu package) - update to 6.11.0-1011.12~24.04.1
linux-image-6.11.0-1011-lowlatency-64k (Ubuntu package) - update to 6.11.0-1011.12~24.04.1
linux-image-lowlatency-64k-hwe-24.04 (Ubuntu package) - update to 6.11.0-1011.12~24.04.1
linux-image-lowlatency-hwe-24.04 (Ubuntu package) - update to 6.11.0-1011.12~24.04.1
linux-image-azure (Ubuntu package) - update to 6.11.0-1012.12
linux-image-6.11.0-1012-azure (Ubuntu package) - update to 6.11.0-1012.12
linux-image-6.11.0-1012-azure-fde (Ubuntu package) - update to 6.11.0-1012.12
linux-image-azure-fde (Ubuntu package) - update to 6.11.0-1012.12
linux-image-oracle (Ubuntu package) - update to 6.11.0-1013.14
linux-image-oracle-64k (Ubuntu package) - update to 6.11.0-1013.14
linux-image-6.11.0-1013-oracle (Ubuntu package) - update to 6.11.0-1013.14
linux-image-6.11.0-1013-oracle-64k (Ubuntu package) - update to 6.11.0-1013.14
linux-image-6.11.0-1017-oem (Ubuntu package) - update to 6.11.0-1017.17
linux-image-oem-24.04b (Ubuntu package) - update to 6.11.0-1017.17

• https://git.kernel.org/stable/c/7fa80134cf266325fa61139320091001c9b3c477
• https://git.kernel.org/stable/c/fe0418eb9bd69a19a948b297c8de815e05f3cde1
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.6
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13

• Improper locking in Linux kernel block
• Ubuntu update for linux-oem-6.11
• Ubuntu update for linux-lowlatency-hwe-6.11
• Ubuntu update for linux-lowlatency
• Ubuntu update for linux
• Ubuntu update for linux-raspi