7.8

CVE-2026-81008: linux

CVSS: 7.8v3.1HighReceived
AliasesUBUNTU-CVE-2026-81008DEBIAN-CVE-2026-81008
Published 11-09-2026Last modified 19-10-2026
Open JSON

Vulnerability summary

CVE-2026-81008 is a high (CVSS 7.8) vulnerability in linux. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 5.3% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.16%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
OPENSUSE-SU-2026:11805-1

Timeline

  1. 11-09-2026
    PublishedVulnerability first disclosed.
  2. 19-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: interconnect: Fix use after free in icc_get() and of_icc_get_by_index() In of_icc_get_by_index() and icc_get(), if the dynamic allocation for path->name fails via kasprintf(), the error handling path directly calls kfree(path) to free the path object and returns an error. However, prior to this point, path_find() calls path_init(), which already links the path's requests into the req_list of the respective interconnect nodes via hlist_add_head(). Directly invoking kfree(path) leaves dangling pointers in the hlist. A subsequent call to icc_get() or icc_set_bw() will traverse or modify these corrupted lists, triggering a slab use afterfree. KASAN report showing the vulnerability when reproducing via debugfs: BUG: KASAN: slab-use-after-free in path_find+0x6f8/0xcfc Write of size 8 at addr fff000000d43f748 by task sh/1 ... Call trace: kasan_report+0xac/0xfc path_find+0x6f8/0xcfc icc_get+0x148/0x380 icc_get_set+0xf8/0x2d0 ... Freed by task 1: kfree+0x1a0/0x4a4 icc_get+0x2cc/0x380 icc_get_set+0xf8/0x2d0 Fix this by replacing kfree(path) with the proper teardown function, icc_put(path), which safely removes the requests from the req_list using hlist_del() and drops the provider usage references before freeing the memory. Additionally, in icc_get(), ensure that the icc_lock mutex is released prior to calling icc_put(path) to avoid a deadlock, as icc_put() internally acquires the same lock.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.16%

Chance of exploitation in the next 30 days

Percentile

5%

Versus all other CVEs

30-day change

0.00 pp

From 0.16% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.16%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu157 products
  • linuxAll versions (No fix recorded)
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
  • linuxAll versions (No fix recorded) | < 6.1.190-1 | < 6.12.111-1 | < 7.2.6-1
  • linux-6.12< 6.12.111-1~deb12u1
Linux1 product
  • linux≥ 3791163602f7140011a8dc1691cfe6ec0cb1ef07, < 03c3af594dea9196cf6ca70d914b42aa8c873c35 | ≥ 3791163602f7140011a8dc1691cfe6ec0cb1ef07, < d4d73decdb9a44a248b1cbd04ed6f334df544d9c | ≥ 3791163602f7140011a8dc1691cfe6ec0cb1ef07, < 9a671125d4228357e5b929733c4593d27a273749 | ≥ 3791163602f7140011a8dc1691cfe6ec0cb1ef07, < fedea72e8f312fe7d0c6cb19353e61d2d5643b11 | ≥ 3791163602f7140011a8dc1691cfe6ec0cb1ef07, < a4e9aa7907ade87d1d96853d14e05dcf682f8363 | ≥ 3791163602f7140011a8dc1691cfe6ec0cb1ef07, < db8147c5d5ad2cfa21c2be566f95981b41b05de6 | ≥ 3791163602f7140011a8dc1691cfe6ec0cb1ef07, < d715d19cfcfe99f361adb05cefc143a95d400b87 | ≥ 3791163602f7140011a8dc1691cfe6ec0cb1ef07, < 25c7e242aca084fdc1098248194032317dca625d | 5.6

3 vendors · 160 products

References

13 links
Show all 13 references