7.1

CVE-2024-36908: blk-iocost: do not WARN if iocg was already offlined

Modified
AliasesUBUNTU-CVE-2024-36908DEBIAN-CVE-2024-36908
Published 30-05-2024Last modified 11-05-2026

Vulnerability summary

CVE-2024-36908 is a high (CVSS 7.1) vulnerability in linux. EPSS estimates a 0.25% chance of exploitation in the next 30 days, higher than 16.2% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.1, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.1/10
010
High · v3.1 (CVE.org)
EPSS score
0.25%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 28 · Related 23
DLA-4178-1DLA-4193-1DSA-5907-1MGASA-2024-0263MGASA-2024-0266SUSE-SU-2025:0117-1

Timeline

  1. 30-05-2024
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: blk-iocost: do not WARN if iocg was already offlined In iocg_pay_debt(), warn is triggered if 'active_list' is empty, which is intended to confirm iocg is active when it has debt. However, warn can be triggered during a blkcg or disk removal, if iocg_waitq_timer_fn() is run at that time: WARNING: CPU: 0 PID: 2344971 at block/blk-iocost.c:1402 iocg_pay_debt+0x14c/0x190 Call trace: iocg_pay_debt+0x14c/0x190 iocg_kick_waitq+0x438/0x4c0 iocg_waitq_timer_fn+0xd8/0x130 __run_hrtimer+0x144/0x45c __hrtimer_run_queues+0x16c/0x244 hrtimer_interrupt+0x2cc/0x7b0 The warn in this situation is meaningless. Since this iocg is being removed, the state of the 'active_list' is irrelevant, and 'waitq_timer' is canceled after removing 'active_list' in ioc_pd_free(), which ensures iocg is freed after iocg_waitq_timer_fn() returns. Therefore, add the check if iocg was already offlined to avoid warn when removing a blkcg or disk.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.25%

Chance of exploitation in the next 30 days

Percentile

16%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.25% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu129 products
  • linuxAll versions (No fix recorded) | < 5.15.0-144.157 | < 6.8.0-40.40
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1088.95 | < 6.8.0-1013.14
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 7caa47151ab2e644dd221f741ec7578d9532c9a3, < 56a9d07f427378eeb75b917bb49c6fbea8204126 | ≥ 7caa47151ab2e644dd221f741ec7578d9532c9a3, < 7d215e013d097ed6fc4b0ad0272c9514214dc408 | ≥ 7caa47151ab2e644dd221f741ec7578d9532c9a3, < aed0aac18f039dd4af13c143063754efca358cb0 | ≥ 7caa47151ab2e644dd221f741ec7578d9532c9a3, < 1c172ac7afe4442964f4153b2c78fe4e005d9d67 | ≥ 7caa47151ab2e644dd221f741ec7578d9532c9a3, < 14b3275f93d4a0d8ddc02195bc4e9869b7a3700e | ≥ 7caa47151ab2e644dd221f741ec7578d9532c9a3, < 01bc4fda9ea0a6b52f12326486f07a4910666cf6 | 5.4
  • linux_kernel≥ 5.4, < 5.10.237 | ≥ 5.11, < 5.15.181 | ≥ 5.16, < 6.1.135 | ≥ 6.2, < 6.6.31 | ≥ 6.7, < 6.8.10 | 6.9:rc1 | 6.9:rc2 | 6.9:rc3 | 6.9:rc4
Debian1 product
  • linux< 6.1.135-1 | < 6.8.11-1

3 vendors · 132 products

References

27 links
Show all 27 references