CVE-2025-40101

btrfs: fix memory leaks when rejecting a non SINGLE data profile without an RST

N/A
Published: October 30, 2025 at 09:48 AM UTC
Updated: October 19, 2026 at 09:10 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix memory leaks when rejecting a non SINGLE data profile without an RST At the end of btrfs_load_block_group_zone_info() the first thing we do is to ensure that if the mapping type is not a SINGLE one and there is no RAID stripe tree, then we return early with an error. Doing that, though, prevents the code from running the last calls from this function which are about freeing memory allocated during its run. Hence, in this case, instead of returning early, we set the ret value and fall through the rest of the cleanup code.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.7.11 ≤ v < 6.85906333cc4af7b3fdb8cfff1cb3e8e579bd131746.7.116.86ffeca99bf6e84800133d21afd41c79d2f002db7
Vendor states this is fixed in 187333e6d484c6630286bfdd07c79d6815a63887 (fixed)
Vendor states this is fixed in 602701d00439e113331ee9c1283e95afdcb8849d (fixed)
Vendor states this is fixed in fec9b9d3ced39f16be8d7afdf81f4dd2653da319 (fixed)
Vendor states this is fixed in 6.12.55 (unaffected)
Vendor states this is fixed in 6.17.5 (unaffected)
Vendor states this is fixed in 6.18 (unaffected)
Vendor states this is fixed in 6.8 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

Quick Info

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