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Vulnerabilities

Vulnerability · CVE-2026-23199

In the Linux kernel, the following vulnerability has been resolved: procfs: avoid fetching build ID while holding VMA lock Fix PROCMAP_QUERY to fetch optional build ID only after d

Published Feb 14, 2026 · catalog updated May 11, 2026 · Linux Linux

Last checked Nov 8, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-23199. EPSS is 0.10%. Act only if a listed version of Linux Linux is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
None0.0
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.10%
Remediation
Version ranges on file
Affected products
vendor Linux Linux ed5d583a88a9207b866c14ba834984c6f3c51d23 <b5cbacd7f86f4f62b8813688c8e73be94e8e1951

In the Linux kernel, the following vulnerability has been resolved: procfs: avoid fetching build ID while holding VMA lock Fix PROCMAP_QUERY to fetch optional build ID only after dropping mmap_lock or per-VMA lock, whichever was used to lock VMA under question, to avoid deadlock reported by syzbot: -> #1 (&mm->mmap_lock){++++}-{4:4}: __might_fault+0xed/0x170 _copy_to_iter+0x118/0x1720 copy_page_to_iter+0x12d/0x1e0 filemap_read+0x720/0x10a0 blkdev_read_iter+0x2b5/0x4e0 vfs_read+0x7f4/0xae0 ksys_read+0x12a/0x250 do_syscall_64+0xcb/0xf80 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #0 (&sb->s_type

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Linux Linux ed5d583a88a9207b866c14ba834984c6f3c51d23 <b5cbacd7f86f4f62b8813688c8e73be94e8e1951ed5d583a88a9207b866c14ba834984c6f3c51d23 <b5cbacd7f86f4f62b8813688c8e73be94e8e1951

How to fix CVE-2026-23199

  • Upgrade

    CVE-2026-23199 lists a fix boundary at b5cbacd7f86f4f62b8813688c8e73be94e8e1951. Compare the installed build with that boundary before you change production.

  • Version check

    Seen in ed5d583a88a9207b866c14ba834984c6f3c51d23 <b5cbacd7f86f4f62b8813688c8e73be94e8e1951

  • Advisory

    Open the cve_org record and follow its fix.

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-23199. EPSS is 0.10%. Act only if a listed version of Linux Linux is installed.

Which versions are affected?

Compare what you have installed with Linux Linux ed5d583a88a9207b866c14ba834984c6f3c51d23 <b5cbacd7f86f4f62b8813688c8e73be94e8e1951 ed5d583a88a9207b866c14ba834984c6f3c51d23 <b5cbacd7f86f4f62b8813688c8e73be94e8e1951. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.10%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Feb 14, 2026 · EUVD

    Detected

    In the Linux kernel, the following vulnerability has been resolved: procfs: avoid fetching build ID while holding VMA lock Fix PROCMAP_QUERY to fetch optional build ID only after dropping mmap_lock or per-VMA lock, whichever was used to lock VMA under question, to avoid deadlock reported by syzbot: -> #1 (&mm->mmap_lock){++++}-{4:4}: __might_fault+0xed/0x170 _copy_to_iter+0x118/0x1720 copy_page_to

  2. May 11, 2026 · EUVD

    Updated

    In the Linux kernel, the following vulnerability has been resolved: procfs: avoid fetching build ID while holding VMA lock Fix PROCMAP_QUERY to fetch optional build ID only after dropping mmap_lock or per-VMA lock, whichever was used to lock VMA under question, to avoid deadlock reported by syzbot: -> #1 (&mm->mmap_lock){++++}-{4:4}: __might_fault+0xed/0x170 _copy_to_iter+0x118/0x1720 copy_page_to

Sources

  • CVE.orgVulnerability recordCVE-2026-23199

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-23199

    30-day exploitation probability 0.10%

    first.org
  • EUVDVulnerability recordEUVD-2026-5848

    In the Linux kernel, the following vulnerability has been resolved: procfs: avoid fetching build ID while holding VMA lock Fix PROCMAP_QUERY to fetch optional build ID only after dropping mmap_lock or per-VMA lock, whichever was used to lock VMA under question, to avoid deadlock

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Nov 8, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 8, 2026
  • CVE.orgNov 4, 2026
  • EUVDNov 2, 2026