vulnerability
Amazon Linux AMI: CVE-2019-19813: Security patch for kernel (ALAS-2021-1477)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:M/Au:N/C:N/I:N/A:C) | Dec 17, 2019 | Jan 27, 2021 | Oct 14, 2022 |
Severity
7
CVSS
(AV:N/AC:M/Au:N/C:N/I:N/A:C)
Published
Dec 17, 2019
Added
Jan 27, 2021
Modified
Oct 14, 2022
Description
In the Linux kernel 5.0.21, mounting a crafted btrfs filesystem image, performing some operations, and then making a syncfs system call can lead to a use-after-free in __mutex_lock in kernel/locking/mutex.c. This is related to mutex_can_spin_on_owner in kernel/locking/mutex.c, __btrfs_qgroup_free_meta in fs/btrfs/qgroup.c, and btrfs_insert_delayed_items in fs/btrfs/delayed-inode.c.
Solution
amazon-linux-upgrade-kernel
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