CVE-2026-46164
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
btrfs: fix double free in create_space_info_sub_group() error path
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix double free in create_space_info_sub_group() error path When kobject_init_and_add() fails, the call chain is: create_space_info_sub_group() -> btrfs_sysfs_add_space_info_type() -> kobject_init_and_add() -> failure -> kobject_put(&sub_group->kobj) -> space_info_release() -> kfree(sub_group) Then control returns to create_space_info_sub_group(), where: btrfs_sysfs_add_space_info_type() returns error -> kfree(sub_group) Thus, sub_group is freed twice. Keep parent->sub_group[index] = NULL for the failure path, but after btrfs_sysfs_add_space_info_type() has called kobject_put(), let the kobject release callback handle the cleanup.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 64c7ddda83acfbaa0efb381a1928ce908c584607 | affected | git | c2d59527cba6d59f0d77a75c1101ab4e69758bea | Unavailable | None listed |
| 0bd151ce4200ca847990e05cca29a76456982ca5 | affected | git | d2a675f2e238ec96c8e91e2718c1f910c9c8fb21 | Unavailable | None listed |
| 190d5a7c4fe42b8c9aa46e3336389e7cb10395bb | affected | git | 14b22be1dd844383eb03af9b1ee3b6b25d32aeaf | Unavailable | None listed |
| f92ee31e031c7819126d2febdda0c3e91f5d2eb9 | affected | git | dfd05a16b5c9d1d98b47905f37f2fccda52173d1 | Unavailable | None listed |
| f92ee31e031c7819126d2febdda0c3e91f5d2eb9 | affected | git | 259af6857a1b4f1e9ef8b780353f9d11c26a22bd | Unavailable | None listed |
| f92ee31e031c7819126d2febdda0c3e91f5d2eb9 | affected | git | a7449edf96143f192606ec8647e3167e1ecbd728 | Unavailable | None listed |
| 6.1.162 | affected | semver | 6.1.176 | Unavailable | None listed |
| 6.6.122 | affected | semver | 6.6.141 | Unavailable | None listed |
| 6.12.67 | affected | semver | 6.12.90 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 6.16 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.16 | Unavailable | None listed |
| 6.1.176 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.141 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.90 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.32 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.0.7 | unaffected | semver | Unavailable | 7.0.* | None listed |
| 7.1 | unaffected | original_commit_for_fix | Unavailable | * | None listed |