CVE-2026-90284: linux

CVSS: UnknownReceived
AliasesUBUNTU-CVE-2026-90284DEBIAN-CVE-2026-90284
Published 17-09-2026Last modified 19-10-2026
Open JSON

Vulnerability summary

CVE-2026-90284 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 10.6% of scored vulnerabilities.

Overall risk
0/100
0100
Minimal · default modelHow is this calculated?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
0.21%
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-2026:11893-1

Timeline

  1. 17-09-2026
    PublishedVulnerability first disclosed.
  2. 19-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: firmware_loader: do not queue completed sysfs fallback requests fw_load_sysfs_fallback() calls device_add() before adding the fw_priv to pending_fw_head. device_add() publishes the fallback loading interface, so a userspace helper which discovers the device by scanning sysfs can write 0 to the loading attribute and complete the request before it is queued as pending. In that interleaving firmware_loading_store() calls fw_state_done() while pending_list still points to itself, so it cannot remove an entry from pending_fw_head. The subsequent unconditional list_add() then queues an already-completed fw_priv. Once the request is released, pending_fw_head can retain a pointer to freed memory and the next fallback request can fault while validating the list. Only in-flight fallback requests need suspend or reboot abort handling. If the request is already DONE after device_add(), return success from the fallback path without sending another uevent, waiting again, or queueing it as pending. This preserves the invariant that pending_fw_head contains only active fallback requests.

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.21%

Chance of exploitation in the next 30 days

Percentile

11%

Versus all other CVEs

30-day change

0.00 pp

From 0.21% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.21%

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

Ubuntu165 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≥ ecb739cf15a9bae040ce6b60209b78b92512d120, < c8b97c5130f27b64fa2cfe1aa4bebb13f724c6c7 | ≥ 75d95e2e39b27f733f21e6668af1c9893a97de5e, < 93a2385730540105df8524447dcc11309ad280f9 | ≥ 75d95e2e39b27f733f21e6668af1c9893a97de5e, < ea33fac0df7fe7b49a4b27acb83e227b82317d1d | ≥ 75d95e2e39b27f733f21e6668af1c9893a97de5e, < 5a250bff75a446374c05622973b18b4ab662b504 | ≥ 75d95e2e39b27f733f21e6668af1c9893a97de5e, < 85aeb8fc61839098ae0942ccba86e669c08e75d4 | ≥ 75d95e2e39b27f733f21e6668af1c9893a97de5e, < 6eaa632d0ed7bbb84f9cb670e5ec4e2cecf4cc7b | ≥ 75d95e2e39b27f733f21e6668af1c9893a97de5e, < fb4824880b0dba0e7b3a497c46c642f979630392 | ≥ 75d95e2e39b27f733f21e6668af1c9893a97de5e, < b48373c901951fad1a26bd7c33ad91172b3945b5 | 67cf0fbcac0d42d4d4686cddc1e39f465bbfec37 | d09639528b66b5c7c20dc8f7fb8928aacabd40bb | c14a54675db7131791402fa22fb0fa6da1f5fb66 | ≥ 5.10.58, < 5.10.270 | ≥ 4.19.203, < 4.20 | ≥ 5.4.140, < 5.5 | ≥ 5.13.10, < 5.14 | 5.14

3 vendors · 168 products

References

13 links
Show all 13 references