CVE-2024-39463 9p: add missing locking around taking dentry fid list

In the Linux kernel, the following vulnerability has been resolved: 9p: add missing locking around taking dentry fid list Fix a use-after-free on dentry's dfsdata fid list when a thread looks up a fid through dentry while another thread unlinks it: UAF thread: refcountt: addition on 0;...

CVE-2024-39463 9p: add missing locking around taking dentry fid list

In the Linux kernel, the following vulnerability has been resolved: 9p: add missing locking around taking dentry fid list Fix a use-after-free on dentry's dfsdata fid list when a thread looks up a fid through dentry while another thread unlinks it: UAF thread: refcountt: addition on 0;...

CVE-2024-39463

In the Linux kernel, the following vulnerability has been resolved: 9p: add missing locking around taking dentry fid list Fix a use-after-free on dentry's dfsdata fid list when a thread looks up a fid through dentry while another thread unlinks it: UAF thread: refcountt: addition on 0;...

SUSE CVE-2021-47579

In the Linux kernel, the following vulnerability has been resolved: ovl: fix warning in ovlcreatereal Syzbot triggered the following warning in ovlworkdircreate - ovlcreatereal: if !err && WARNON!newdentry-dinode The reason is that the cgroup2 filesystem returns from mkdir without instantiating t...

UBUNTU-CVE-2021-47579

In the Linux kernel, the following vulnerability has been resolved: ovl: fix warning in ovlcreatereal Syzbot triggered the following warning in ovlworkdircreate - ovlcreatereal: if !err && WARNON!newdentry-dinode The reason is that the cgroup2 filesystem returns from mkdir without instantiating t...

CVE-2021-47579

Mode C: CVE-2021-47579 affects the Linux kernel overlayfs component (ovl) with a WARN_ON path in ovl_workdir_create() when mkdir returns a dentry without an inode (not instantiated). The fix, described in the connected advisories, calls ovl_mkdir_real() directly from ovl_workdir_create() and reje...

CVE-2021-47579 ovl: fix warning in ovl_create_real()

In the Linux kernel, the following vulnerability has been resolved: ovl: fix warning in ovlcreatereal Syzbot triggered the following warning in ovlworkdircreate - ovlcreatereal: if !err && WARNON!newdentry-dinode The reason is that the cgroup2 filesystem returns from mkdir without instantiating t...

CVE-2021-47579 ovl: fix warning in ovl_create_real()

In the Linux kernel, the following vulnerability has been resolved: ovl: fix warning in ovlcreatereal Syzbot triggered the following warning in ovlworkdircreate - ovlcreatereal: if !err && WARNON!newdentry-dinode The reason is that the cgroup2 filesystem returns from mkdir without instantiating t...

Linux kernel security vulnerabilities

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from the cgroup2 filesystem not instantiating a new dentry when returning from mkdir...

CVE-2024-36947

In the Linux kernel, the following vulnerability has been resolved: qibfs: fix dentry leak simplerecursiveremoval drops the pinning references to all positives in subtree. For the cases when its argument has been kept alive by the pinning alone that's exactly the right thing to do, but here the...

DEBIAN-CVE-2024-36947

In the Linux kernel, the following vulnerability has been resolved: qibfs: fix dentry leak simplerecursiveremoval drops the pinning references to all positives in subtree. For the cases when its argument has been kept alive by the pinning alone that's exactly the right thing to do, but here the...

CVE-2024-36947

In the Linux kernel, the following vulnerability has been resolved: qibfs: fix dentry leak simplerecursiveremoval drops the pinning references to all positives in subtree. For the cases when its argument has been kept alive by the pinning alone that's exactly the right thing to do, but here the...

CVE-2024-36947

In the Linux kernel, the following vulnerability has been resolved: qibfs: fix dentry leak simplerecursiveremoval drops the pinning references to all positives in subtree. For the cases when its argument has been kept alive by the pinning alone that's exactly the right thing to do, but here the...

UBUNTU-CVE-2024-36947

In the Linux kernel, the following vulnerability has been resolved: qibfs: fix dentry leak simplerecursiveremoval drops the pinning references to all positives in subtree. For the cases when its argument has been kept alive by the pinning alone that's exactly the right thing to do, but here the...

CVE-2024-36947

In CVE-2024-36947, the Linux kernel had a dentry leak in qibfs due to simple_recursive_removal() dropping pinning references for positives in a subtree. When the argument is retained by pinning from dcache lookup, it must be balanced with an explicit dput(); otherwise, a leak can occur. The conne...

CVE-2024-36947 qibfs: fix dentry leak

In the Linux kernel, the following vulnerability has been resolved: qibfs: fix dentry leak simplerecursiveremoval drops the pinning references to all positives in subtree. For the cases when its argument has been kept alive by the pinning alone that's exactly the right thing to do, but here the...

CVE-2024-36947 qibfs: fix dentry leak

In the Linux kernel, the following vulnerability has been resolved: qibfs: fix dentry leak simplerecursiveremoval drops the pinning references to all positives in subtree. For the cases when its argument has been kept alive by the pinning alone that's exactly the right thing to do, but here the...

CVE-2024-36947 qibfs: fix dentry leak

In the Linux kernel, the following vulnerability has been resolved: qibfs: fix dentry leak simplerecursiveremoval drops the pinning references to all positives in subtree. For the cases when its argument has been kept alive by the pinning alone that's exactly the right thing to do, but here the...

SUSE CVE-2021-47316

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix NULL dereference in nfs3svcencodegetaclres In error cases the dentry may be NULL. Before 20798dfe249a, the encoder also checked dentry and dreallyispositivedentry, but that looks like overkill to me--zero status should ...

UBUNTU-CVE-2021-47316

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix NULL dereference in nfs3svcencodegetaclres In error cases the dentry may be NULL. Before 20798dfe249a, the encoder also checked dentry and dreallyispositivedentry, but that looks like overkill to me--zero status should ...