CVE-2026-46129
highpriority · track · 0EPSS 0.001 · 3 %ileDEEURUUSEPSS · scored 2026-10-28
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (63)
Products and version ranges known to be affected.
- Red Hat Enterprise Linux 7 Extended Lifecycle Supportall versionscert_bundDEcpe:/o:redhat:enterprise_linux:7_extended_lifecycle_support
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-1700Linux Kernel: Mehrere SchwachstellenDeutsch2026-05-27csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um einen Denial of Service Angriff durchzuführen oder andere nicht näher spezifizierte Auswirkungen zu erzielen.
also known as (6)
Other names and identifiers for this entity.
sources
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references (18)
External citations — patches, advisories, analysis.
- https://git.kernel.org/stable/c/3f487be81292702a59ea9dbc4088b3360a50e837cnnvd
- https://git.kernel.org/stable/c/9a060970fd7b5e1c561e4ce73cb9949e4269a738cnnvd
- https://git.kernel.org/stable/c/c2670ec4aa49ca226bce9776601e0da37502be07cnnvd
- https://git.kernel.org/stable/c/dd6ade0fdd59218d71a981ae7c937a304e49209ccnnvd
- https://git.kernel.org/stable/c/f414b3abbba59ef379a2b3c31f2bdd9358ed5e53cnnvd
- https://www.kernel.org/Patchcnnvd
- https://git.kernel.org/stable/c/3f487be81292702a59ea9dbc4088b3360a50e837enisa_euvd
- https://git.kernel.org/stable/c/9a060970fd7b5e1c561e4ce73cb9949e4269a738enisa_euvd
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