do_change_type(): refuse to operate on unmounted/not ours mounts
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.2%
exploitation probability
0.2%top 94% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
do_change_type(): refuse to operate on unmounted/not ours mounts
Ensure that propagation settings can only be changed for mounts located
in the caller's mount namespace. This change aligns permission checking
with the rest of mount(2).
Affected products
Linux · LinuxReferences
https://cert-portal.siemens.com/productcert/html/ssa-082556.htmlhttps://cert-portal.siemens.com/productcert/html/ssa-089022.htmlhttps://git.kernel.org/stable/c/064014f7812744451d5d0592f3d2bcd727f2ee93https://git.kernel.org/stable/c/12f147ddd6de7382dad54812e65f3f08d05809fchttps://git.kernel.org/stable/c/19554c79a2095ddde850906a067915c1ef3a4114https://git.kernel.org/stable/c/432a171d60056489270c462e651e6c3a13f855b1https://git.kernel.org/stable/c/4f091ad0862b02dc42a19a120b7048de848561f8https://git.kernel.org/stable/c/787937c4e373f1722c4343e5a5a4eb0f8543e589https://git.kernel.org/stable/c/9c1ddfeb662b668fff69c5f1cfdd9f5d23d55d23https://git.kernel.org/stable/c/c7d11fdf8e5db5f34a6c062c7e6ba3a0971879d2https://lists.debian.org/debian-lts-announce/2025/10/msg00007.htmlhttps://lists.debian.org/debian-lts-announce/2025/10/msg00008.html