UBUNTU-CVE-2019-19318

Details

In the Linux kernel 5.3.11, mounting a crafted btrfs image twice can cause an rwsem_down_write_slowpath use-after-free because (in rwsem_can_spin_on_owner in kernel/locking/rwsem.c) rwsem_owner_flags returns an already freed pointer,

Affected Packages(177 packages)

linux

Ubuntu 14.04 LTS

Fixed in:

3.11.0-12.19

linux

Ubuntu 16.04 LTS

Affected versions:

4.2.0-16.194.2.0-17.214.2.0-19.234.3.0-1.104.3.0-2.114.3.0-5.164.3.0-6.174.3.0-7.18

Fixed in:

4.4.0-2.16

linux

Ubuntu 25.04

Fixed in:

6.11.0-8.8

linux

Ubuntu 24.04 LTS

Fixed in:

6.5.0-9.9

linux

Ubuntu 20.04 LTS

Affected versions:

5.3.0-18.195.3.0-24.26

Fixed in:

5.4.0-9.12

linux

Ubuntu 18.04 LTS

Fixed in:

4.13.0-16.19

linux

Ubuntu 24.10

Fixed in:

6.8.0-31.31

linux

Ubuntu 22.04 LTS

Fixed in:

5.13.0-19.19

linux-aws

Ubuntu 22.04 LTS

Fixed in:

5.13.0-1005.6

linux-aws

Ubuntu 25.04

Fixed in:

6.11.0-1004.4

References

REPORT

https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19318

REPORT

https://ubuntu.com/security/CVE-2019-19318

REPORT

https://ubuntu.com/security/notices/USN-4414-1

REPORT

https://www.cve.org/CVERecord?id=CVE-2019-19318