Описание
In shiftfs, a non-upstream patch to the Linux kernel included in the Ubuntu 5.0 and 5.3 kernel series, shiftfs_btrfs_ioctl_fd_replace() installs an fd referencing a file from the lower filesystem without taking an additional reference to that file. After the btrfs ioctl completes this fd is closed, which then puts a reference to that file, leading to a refcount underflow.
Ссылки
- Mailing ListPatchThird Party Advisory
- Third Party Advisory
- Third Party Advisory
- Mailing ListPatchThird Party Advisory
- Third Party Advisory
- Third Party Advisory
Уязвимые конфигурации
Одно из
Одно из
EPSS
7.1 High
CVSS3
7.8 High
CVSS3
4.6 Medium
CVSS2
Дефекты
Связанные уязвимости
In shiftfs, a non-upstream patch to the Linux kernel included in the Ubuntu 5.0 and 5.3 kernel series, shiftfs_btrfs_ioctl_fd_replace() installs an fd referencing a file from the lower filesystem without taking an additional reference to that file. After the btrfs ioctl completes this fd is closed, which then puts a reference to that file, leading to a refcount underflow.
In shiftfs, a non-upstream patch to the Linux kernel included in the Ubuntu 5.0 and 5.3 kernel series, shiftfs_btrfs_ioctl_fd_replace() installs an fd referencing a file from the lower filesystem without taking an additional reference to that file. After the btrfs ioctl completes this fd is closed, which then puts a reference to that file, leading to a refcount underflow.
In shiftfs, a non-upstream patch to the Linux kernel included in the U ...
In shiftfs, a non-upstream patch to the Linux kernel included in the Ubuntu 5.0 and 5.3 kernel series, shiftfs_btrfs_ioctl_fd_replace() installs an fd referencing a file from the lower filesystem without taking an additional reference to that file. After the btrfs ioctl completes this fd is closed, which then puts a reference to that file, leading to a refcount underflow.
Уязвимость компонента shiftfs ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании
EPSS
7.1 High
CVSS3
7.8 High
CVSS3
4.6 Medium
CVSS2