CVE catalog

CVE-2026-72202

linux: CVE-2026-72202

Severity: High · CVSS 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: Aug 15, 2026, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.49% · Oct 25, 2026

In the Linux kernel, the following vulnerability has been resolved: ntfs: avoid heap allocation for free-cluster readahead state get_nr_free_clusters() allocates a temporary file_ra_state before it publishes the precomputed free cluster count, sets NVolFreeClusterKnown(), and wakes vol->free_waitq. If that allocation fails, the worker returns without setting the flag or waking waiters, so callers waiting for the free count can block indefinitely. The readahead state is only used synchronously while scanning the bitmap. Keep it on the stack and pass it by address to the readahead helper. This eliminates the early allocation failure path instead of adding a special case that publishes a conservative count and wakes the waitqueue. Zero-initialize the on-stack state because file_ra_state_init() only sets ra_pages and prev_pos. Apply the same treatment to __get_nr_free_mft_records(), which scans the MFT bitmap with the same short-lived readahead state.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	linux	sid	`7.2.12-1`	fixed
Debian	linux	forky	`7.2.12-1`	fixed
Debian	linux	trixie	`6.12.107-1`	not affected
Debian	linux	trixie-security	`6.12.113-1`	not affected
Debian	linux	bookworm	`6.1.176-1`	not affected
Debian	linux	bookworm-security	`6.1.190-1`	not affected

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	linux	source	sid	`7.1.5-1`	not yet assigned	Not reported	Not reported
Debian	linux	source	forky	`7.1.5-1`	not yet assigned	Not reported	Not reported
Debian	linux	source	trixie	`Not affected`	unimportant	Not reported	Not reported
Debian	linux	source	bookworm	`Not affected`	unimportant	Not reported	Not reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[bpftool]Not affected
Source package: [linux]
Details (6)
- 7.1.0+6.1.176-1 · amd64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 7.1.0+6.1.176-1 · arm64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 7.5.0+6.12.95-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 7.5.0+6.12.95-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 7.1.0+6.1.180-1 · amd64 · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
- 7.1.0+6.1.180-1 · arm64 · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
[hyperv-daemons]Not affected
Source package: [linux]
Details (6)
- 6.1.176-1 · amd64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.176-1 · arm64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · amd64 · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · arm64 · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
[intel-sdsi]Not affected
Source package: [linux]
Details (1)
- 6.12.95-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
[libcpupower1]Not affected
Source package: [linux]
Details (6)
- 6.1.176-1 · amd64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.176-1 · arm64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · amd64 · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · arm64 · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
[libcpupower-dev]Not affected
Source package: [linux]
Details (6)
- 6.1.176-1 · amd64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.176-1 · arm64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · amd64 · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · arm64 · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
[linux-bpf-dev]Not affected
Source package: [linux]
Details (2)
- 6.12.95-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
[linux-compiler-gcc-12-x86]Not affected
Source package: [linux]
Details (2)
- 6.1.176-1 · amd64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · amd64 · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
[linux-config-6.1]Not affected
Source package: [linux]
Details (4)
- 6.1.176-1 · amd64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.176-1 · arm64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · amd64 · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · arm64 · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
[linux-cpupower]Not affected
Source package: [linux]
Details (6)
- 6.1.176-1 · amd64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.176-1 · arm64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · amd64 · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · arm64 · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
[linux-doc]Not affected
Source package: [linux]
Details (32)
- 6.1.170-3 · all · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.170-3 · all · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.176-1 · all · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.176-1 · all · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.12.43-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.43-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.57-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.57-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.63-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.63-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.69-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.69-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.73-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.73-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.74-2~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.74-2~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.85-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.85-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.86-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.86-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.88-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.88-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.90-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.90-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.90-2~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.90-2~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.94-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.94-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · all · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · all · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
[linux-doc-6.1]Not affected
Source package: [linux]
Details (6)
- 6.1.170-3 · all · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.170-3 · all · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.176-1 · all · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.176-1 · all · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · all · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · all · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
[linux-headers-6.1.0-47-amd64]Not affected
Source package: [linux]
Details (1)
- 6.1.170-3 · amd64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
[linux-headers-6.1.0-47-arm64]Not affected
Source package: [linux]
Details (1)
- 6.1.170-3 · arm64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
[linux-headers-6.1.0-47-cloud-amd64]Not affected
Source package: [linux]
Details (1)
- 6.1.170-3 · amd64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
[linux-headers-6.1.0-47-cloud-arm64]Not affected
Source package: [linux]
Details (1)
- 6.1.170-3 · arm64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
[linux-headers-6.1.0-47-common]Not affected
Source package: [linux]
Details (2)
- 6.1.170-3 · all · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.170-3 · all · bookworm
  Not affected
  dsa · linux · debian · bookworm
[linux-headers-6.1.0-47-common-rt]Not affected
Source package: [linux]
Details (2)
- 6.1.170-3 · all · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.170-3 · all · bookworm
  Not affected
  dsa · linux · debian · bookworm
[linux-headers-6.1.0-47-rt-amd64]Not affected
Source package: [linux]
Details (1)
- 6.1.170-3 · amd64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
[linux-headers-6.1.0-47-rt-arm64]Not affected
Source package: [linux]
Details (1)
- 6.1.170-3 · arm64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
[linux-headers-6.1.0-50-amd64]Not affected
Source package: [linux]
Details (1)
- 6.1.176-1 · amd64 · bookworm
  Not affected
  dsa · linux · debian · bookworm

Next results

Observed: Oct 27, 2026, 7:05:25 AM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]