APPLIED: [SRU Xenial, bionic/linux-hwe, focal/linux-oem-5.6 0/1] setting extended attribute may cause memory leak

[Stefan Bader]

On 16.04.21 01:23, Thadeu Lima de Souza Cascardo wrote:
> BugLink: https://bugs.launchpad.net/bugs/1924611
> 
> [Impact]
> A memory leak may happen when an error happens when setting extended
> attributes.
> 
> [Fix]
> The issue was introduced by an improper backport, so the fix is specific to
> Ubuntu, so a SAUCE patch.
> 
> [Test case]
> Test setting attribute under a user namespace.
> 
> [Regression potential]
> A double free bug might be introduced. Or setting extended attributes might
> fail.
> 
> Thadeu Lima de Souza Cascardo (1):
>    UBUNTU: SAUCE: vfs_setxattr: free converted value if xattr_permission
>      returns error
> 
>   fs/xattr.c | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)
> 
Applied to focal:linux-oem-5.6/oem-5.6-next, bionic:linux-hwe/hwe, and 
xenial:linux/master-prep (-next moved ahead). Thanks.

-Stefan

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