Public bug reported:
[Impact]
Any user may spam dmesg may issuing an invalid ioctl to /dev/vsock.
[Fix]
Do not print anything to dmesg when an invalid ioctl is issued to /dev/vsock.
[Test case]
ioctl(open("/dev/vsock", O_RDONLY), garbage, 0);
[Potential regression]
vsock users may regress.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Fix Released
** Affects: linux (Ubuntu Xenial)
Importance: Low
Assignee: Thadeu Lima de Souza Cascardo (cascardo)
Status: In Progress
** Affects: linux (Ubuntu Bionic)
Importance: Low
Assignee: Thadeu Lima de Souza Cascardo (cascardo)
Status: In Progress
** Affects: linux (Ubuntu Focal)
Importance: Low
Assignee: Thadeu Lima de Souza Cascardo (cascardo)
Status: In Progress
** Also affects: linux (Ubuntu Xenial)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Bionic)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Focal)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu)
Status: New => Fix Released
** Changed in: linux (Ubuntu Xenial)
Importance: Undecided => Low
** Changed in: linux (Ubuntu Bionic)
Importance: Undecided => Low
** Changed in: linux (Ubuntu Focal)
Importance: Undecided => Low
** Changed in: linux (Ubuntu Focal)
Assignee: (unassigned) => Thadeu Lima de Souza Cascardo (cascardo)
** Changed in: linux (Ubuntu Focal)
Status: New => In Progress
** Changed in: linux (Ubuntu Xenial)
Assignee: (unassigned) => Thadeu Lima de Souza Cascardo (cascardo)
** Changed in: linux (Ubuntu Bionic)
Assignee: (unassigned) => Thadeu Lima de Souza Cascardo (cascardo)
** Changed in: linux (Ubuntu Bionic)
Status: New => In Progress
** Changed in: linux (Ubuntu Xenial)
Status: New => In Progress
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https://bugs.launchpad.net/bugs/1971480
Title:
issuing invalid ioctl to /dev/vsock may spam dmesg
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Xenial:
In Progress
Status in linux source package in Bionic:
In Progress
Status in linux source package in Focal:
In Progress
Bug description:
[Impact]
Any user may spam dmesg may issuing an invalid ioctl to /dev/vsock.
[Fix]
Do not print anything to dmesg when an invalid ioctl is issued to /dev/vsock.
[Test case]
ioctl(open("/dev/vsock", O_RDONLY), garbage, 0);
[Potential regression]
vsock users may regress.
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