Answer in brief
CVE-2026-46129 records a High severity (CVSS 7.8) vulnerability in btrfs: fix double free in create_space_info() error path. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=20e8f2de3688082eeafeb93c8900485b7542457e <ae6d6e31ceb72b7697c28a528e4923c08e3c2ef5 || >=58208907c4044a764dbd8896026283905da6d9be <c2670ec4aa49ca226bce9776601e0da37502be07 || >=bb4fa4c0b54aae25e55faeda7f78d0c11b8cd618 <f414b3abbba59ef379a2b3c31f2bdd9358ed5e53 || >=6cb008f1bb23e023dfe615cca5df14570dfc8da5 <9a060970fd7b5e1c561e4ce73cb9949e4269a738 || >=a11224a016d6d1d46a4d9b6573244448a80d4d7f <dd6ade0fdd59218d71a981ae7c937a304e49209c || >=a11224a016d6d1d46a4d9b6573244448a80d4d7f <3f487be81292702a59ea9dbc4088b3360a50e837 || >=6.1.162 <6.1.175 || >=6.6.122 <6.6.140 || >=6.12.67 <6.12.88 || >=6.18.7 <6.18.30 | ae6d6e31ceb72b7697c28a528e4923c08e3c2ef5, c2670ec4aa49ca226bce9776601e0da37502be07, f414b3abbba59ef379a2b3c31f2bdd9358ed5e53, 9a060970fd7b5e1c561e4ce73cb9949e4269a738, dd6ade0fdd59218d71a981ae7c937a304e49209c, 3f487be81292702a59ea9dbc4088b3360a50e837, 6.1.175, 6.6.140, 6.12.88, 6.18.30 |
| Linux/Linuxgeneric | 6.19 | Not reported |
Published upstream
May 28, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jun 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 24, 2026
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix double free in create_space_info() error path When kobject_init_and_add() fails, the call chain is: create_space_info() -> btrfs_sysfs_add_space_info_type() -> kobject_init_and_add() -> failure -> kobject_put(&space_info->kobj) -> space_info_release() -> kfree(space_info) Then control returns to create_space_info(): btrfs_sysfs_add_space_info_type() returns error -> goto out_free -> kfree(space_info) This causes a double free. Keep the direct kfree(space_info) for the earlier failure path, but after btrfs_sysfs_add_space_info_type() has called kobject_put(), let the kobject release callback handle the cleanup.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-46129 records a High severity (CVSS 7.8) vulnerability in btrfs: fix double free in create_space_info() error path. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=20e8f2de3688082eeafeb93c8900485b7542457e <ae6d6e31ceb72b7697c28a528e4923c08e3c2ef5 || >=58208907c4044a764dbd8896026283905da6d9be <c2670ec4aa49ca226bce9776601e0da37502be07 || >=bb4fa4c0b54aae25e55faeda7f78d0c11b8cd618 <f414b3abbba59ef379a2b3c31f2bdd9358ed5e53 || >=6cb008f1bb23e023dfe615cca5df14570dfc8da5 <9a060970fd7b5e1c561e4ce73cb9949e4269a738 || >=a11224a016d6d1d46a4d9b6573244448a80d4d7f <dd6ade0fdd59218d71a981ae7c937a304e49209c || >=a11224a016d6d1d46a4d9b6573244448a80d4d7f <3f487be81292702a59ea9dbc4088b3360a50e837 || >=6.1.162 <6.1.175 || >=6.6.122 <6.6.140 || >=6.12.67 <6.12.88 || >=6.18.7 <6.18.30 | ae6d6e31ceb72b7697c28a528e4923c08e3c2ef5, c2670ec4aa49ca226bce9776601e0da37502be07, f414b3abbba59ef379a2b3c31f2bdd9358ed5e53, 9a060970fd7b5e1c561e4ce73cb9949e4269a738, dd6ade0fdd59218d71a981ae7c937a304e49209c, 3f487be81292702a59ea9dbc4088b3360a50e837, 6.1.175, 6.6.140, 6.12.88, 6.18.30 |
| Linux/Linuxgeneric | 6.19 | Not reported |
Published upstream
May 28, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jun 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 24, 2026
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix double free in create_space_info() error path When kobject_init_and_add() fails, the call chain is: create_space_info() -> btrfs_sysfs_add_space_info_type() -> kobject_init_and_add() -> failure -> kobject_put(&space_info->kobj) -> space_info_release() -> kfree(space_info) Then control returns to create_space_info(): btrfs_sysfs_add_space_info_type() returns error -> goto out_free -> kfree(space_info) This causes a double free. Keep the direct kfree(space_info) for the earlier failure path, but after btrfs_sysfs_add_space_info_type() has called kobject_put(), let the kobject release callback handle the cleanup.
Quoted source text, attributed separately from HOL analysis.