CVE-2024-53184

um: ubd: Do not use drvdata in release

MEDIUM

5.5

CVSS Score

Published: December 27, 2024 at 01:49 PM UTC

Updated: June 17, 2026 at 08:08 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.3%

Description

In the Linux kernel, the following vulnerability has been resolved: um: ubd: Do not use drvdata in release The drvdata is not available in release. Let's just use container_of() to get the ubd instance. Otherwise, removing a ubd device will result in a crash: RIP: 0033:blk_mq_free_tag_set+0x1f/0xba RSP: 00000000e2083bf0 EFLAGS: 00010246 RAX: 000000006021463a RBX: 0000000000000348 RCX: 0000000062604d00 RDX: 0000000004208060 RSI: 00000000605241a0 RDI: 0000000000000348 RBP: 00000000e2083c10 R08: 0000000062414010 R09: 00000000601603f7 R10: 000000000000133a R11: 000000006038c4bd R12: 0000000000000000 R13: 0000000060213a5c R14: 0000000062405d20 R15: 00000000604f7aa0 Kernel panic - not syncing: Segfault with no mm CPU: 0 PID: 17 Comm: kworker/0:1 Not tainted 6.8.0-rc3-00107-gba3f67c11638 #1 Workqueue: events mc_work_proc Stack: 00000000 604f7ef0 62c5d000 62405d20 e2083c30 6002c776 6002c755 600e47ff e2083c60 6025ffe3 04208060 603d36e0 Call Trace: [<6002c776>] ubd_device_release+0x21/0x55 [<6002c755>] ? ubd_device_release+0x0/0x55 [<600e47ff>] ? kfree+0x0/0x100 [<6025ffe3>] device_release+0x70/0xba [<60381d6a>] kobject_put+0xb5/0xe2 [<6026027b>] put_device+0x19/0x1c [<6026a036>] platform_device_put+0x26/0x29 [<6026ac5a>] platform_device_unregister+0x2c/0x2e [<6002c52e>] ubd_remove+0xb8/0xd6 [<6002bb74>] ? mconsole_reply+0x0/0x50 [<6002b926>] mconsole_remove+0x160/0x1cc [<6002bbbc>] ? mconsole_reply+0x48/0x50 [<6003379c>] ? um_set_signals+0x3b/0x43 [<60061c55>] ? update_min_vruntime+0x14/0x70 [<6006251f>] ? dequeue_task_fair+0x164/0x235 [<600620aa>] ? update_cfs_group+0x0/0x40 [<603a0e77>] ? __schedule+0x0/0x3ed [<60033761>] ? um_set_signals+0x0/0x43 [<6002af6a>] mc_work_proc+0x77/0x91 [<600520b4>] process_scheduled_works+0x1af/0x2c3 [<6004ede3>] ? assign_work+0x0/0x58 [<600527a1>] worker_thread+0x2f7/0x37a [<6004ee3b>] ? set_pf_worker+0x0/0x64 [<6005765d>] ? arch_local_irq_save+0x0/0x2d [<60058e07>] ? kthread_exit+0x0/0x3a [<600524aa>] ? worker_thread+0x0/0x37a [<60058f9f>] kthread+0x130/0x135 [<6002068e>] new_thread_handler+0x85/0xb6

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

v < 4.19.3253.6 ≤ v < 4.19.3253.6 ≤ v < 5.10.2313.6 ≤ v < 5.15.1743.6 ≤ v < 5.4.2873.6 ≤ v < 6.1.1203.6 ≤ v < 6.11.113.6 ≤ v < 6.12.23.6 ≤ v < 6.133.6 ≤ v < 6.6.644.20 ≤ v < 5.4.2875.11 ≤ v < 5.15.1745.16 ≤ v < 6.1.1205.5 ≤ v < 5.10.2316.12 ≤ v < 6.12.26.2 ≤ v < 6.6.646.7 ≤ v < 6.11.113.6998d631001288a5974afc0b2a5f568bcdecb4d

Vendor states this is fixed in 16cf8511680809a9f20b3dd224c06d482648f9e2 (fixed)

Vendor states this is fixed in 23d742a3fcd4781eed015a3a93e6a0e3ab1ef2a8 (fixed)

Vendor states this is fixed in 2d194d951895df214e066d08146e77cb6e02c1d4 (fixed)

Vendor states this is fixed in 300e277e463e6326938dd55ea560eafa0f5c88a5 (fixed)

Vendor states this is fixed in 509ba8746f812e45a05034ba18b73db574693d11 (fixed)

Vendor states this is fixed in 5727343348f34e11a7c5a2a944d5aa505731d876 (fixed)

Vendor states this is fixed in 5bee35e5389f450a7eea7318deb9073e9414d3b1 (fixed)

Vendor states this is fixed in a5a75207efae4b558aaa34c288de7d6f2e926b4b (fixed)

Vendor states this is fixed in e6e5a4cded9bef3a1b0a4fac815b7176eb9a18ec (fixed)

Vendor states this is fixed in 3.6 (unaffected)

Vendor states this is fixed in 4.19.325 (unaffected)

Vendor states this is fixed in 5.10.231 (unaffected)