UBUNTU-CVE-2023-54323

In the Linux kernel, the following vulnerability has been resolved: cxl/pmem: Fix nvdimm registration races A loop of the form: while true; do modprobe cxlpci; modprobe -r cxlpci; done ...fails with the following crash signature: BUG: kernel NULL pointer dereference, address: 0000000000000040...

UBUNTU-CVE-2023-54250

In the Linux kernel, the following vulnerability has been resolved: ksmbd: avoid out of bounds access in decodepreauthctxt Confirm that the accessed pnegctxt-HashAlgorithms address sits within the SMB request boundary; deassemblenegcontexts only checks that the eight byte smb2negcontext header +...

UBUNTU-CVE-2023-54174

In the Linux kernel, the following vulnerability has been resolved: vfio: Fix NULL pointer dereference caused by uninitialized group-iommufd group-iommufd is not initialized for the iommufdctxput 20018.331541 BUG: kernel NULL pointer dereference, address: 0000000000000000 20018.377508 RIP:...

CVE-2022-50837

In the Linux kernel, the following vulnerability has been resolved: net: dsa: tag8021q: avoid leaking ctx on dsatag8021qregister error path If dsatag8021qsetup fails, for example due to the inability of the device to install a VLAN, the tag8021q context of the switch will leak. Make sure it is...

CVE-2022-50837

In the Linux kernel, the following vulnerability has been resolved: net: dsa: tag8021q: avoid leaking ctx on dsatag8021qregister error path If dsatag8021qsetup fails, for example due to the inability of the device to install a VLAN, the tag8021q context of the switch will leak. Make sure it is...

CVE-2023-54269

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: double free xprtctxt while still in use When an RPC request is deferred, the rqxprtctxt pointer is moved out of the svcrqst into the svcdeferredreq. When the deferred request is revisited, the pointer is copied into the n...

CVE-2023-54269 SUNRPC: double free xprt_ctxt while still in use

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: double free xprtctxt while still in use When an RPC request is deferred, the rqxprtctxt pointer is moved out of the svcrqst into the svcdeferredreq. When the deferred request is revisited, the pointer is copied into the n...

CVE-2023-54269

CVE-2023-54269: Linux kernel SUNRPC double-free of rq_xprt_ctxt during deferred RPC handling. Connected sources consistently describe the root cause as the improper handling of rq_xprt_ctxt when an RPC request is revisited after deferral, risking use-after-free on UDP or mismanagement on RDMA. Th...

CVE-2023-54250

CVE-2023-54250 is about ksmbd in the Linux kernel avoiding an out-of-bounds access in decode_preauth_ctxt(). The issue arises because pneg_ctxt->HashAlgorithms is accessed within the SMB request boundary, while deassemble_neg_contexts() only checks the eight-byte SMB2_neg_context header plus t...

CVE-2023-54250

In the Linux kernel, the following vulnerability has been resolved: ksmbd: avoid out of bounds access in decodepreauthctxt Confirm that the accessed pnegctxt-HashAlgorithms address sits within the SMB request boundary; deassemblenegcontexts only checks that the eight byte smb2negcontext header +...

CVE-2023-54250 ksmbd: avoid out of bounds access in decode_preauth_ctxt()

In the Linux kernel, the following vulnerability has been resolved: ksmbd: avoid out of bounds access in decodepreauthctxt Confirm that the accessed pnegctxt-HashAlgorithms address sits within the SMB request boundary; deassemblenegcontexts only checks that the eight byte smb2negcontext header +...

CVE-2023-54250 ksmbd: avoid out of bounds access in decode_preauth_ctxt()

In the Linux kernel, the following vulnerability has been resolved: ksmbd: avoid out of bounds access in decodepreauthctxt Confirm that the accessed pnegctxt-HashAlgorithms address sits within the SMB request boundary; deassemblenegcontexts only checks that the eight byte smb2negcontext header +...

CVE-2022-50837 net: dsa: tag_8021q: avoid leaking ctx on dsa_tag_8021q_register() error path

In the Linux kernel, the following vulnerability has been resolved: net: dsa: tag8021q: avoid leaking ctx on dsatag8021qregister error path If dsatag8021qsetup fails, for example due to the inability of the device to install a VLAN, the tag8021q context of the switch will leak. Make sure it is...

CVE-2022-50837 net: dsa: tag_8021q: avoid leaking ctx on dsa_tag_8021q_register() error path

In the Linux kernel, the following vulnerability has been resolved: net: dsa: tag8021q: avoid leaking ctx on dsatag8021qregister error path If dsatag8021qsetup fails, for example due to the inability of the device to install a VLAN, the tag8021q context of the switch will leak. Make sure it is...

CVE-2022-50837

CVE-2022-50837 concerns the Linux kernel component for network switching (net: dsa: tag_8021q). The vulnerability arises when dsa_tag_8021q_setup() fails (e.g., VLAN install issue), causing the tag_8021q context of the switch to leak. The issue has been resolved by ensuring the affected ctx is fr...

CVE-2023-54174 vfio: Fix NULL pointer dereference caused by uninitialized group->iommufd

In the Linux kernel, the following vulnerability has been resolved: vfio: Fix NULL pointer dereference caused by uninitialized group-iommufd group-iommufd is not initialized for the iommufdctxput 20018.331541 BUG: kernel NULL pointer dereference, address: 0000000000000000 20018.377508 RIP:...

CVE-2023-54174 vfio: Fix NULL pointer dereference caused by uninitialized group->iommufd

In the Linux kernel, the following vulnerability has been resolved: vfio: Fix NULL pointer dereference caused by uninitialized group-iommufd group-iommufd is not initialized for the iommufdctxput 20018.331541 BUG: kernel NULL pointer dereference, address: 0000000000000000 20018.377508 RIP:...

CVE-2023-54174

CVE-2023-54174 affects the Linux kernel vfio path: a NULL pointer dereference occurs when group->iommufd is uninitialized in iommufd_ctx_put(), leading to kernel crash via vfio_group_fops_unl_ioctl flow. The issue is caused by iommufd_ctx_put dereferencing an uninitialized group->iommufd, a...

CVE-2022-50786 media: s5p-mfc: Clear workbit to handle error condition

In the Linux kernel, the following vulnerability has been resolved: media: s5p-mfc: Clear workbit to handle error condition During error on CLOSEINSTANCE command, ctxworkbits was not getting cleared. During consequent mfc execution NULL pointer dereferencing of this context led to kernel panic...

PT-2025-53926

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel where a NULL pointer dereference could occur, leading to a kernel panic. This issue arises from a failure to clear ctx work bits during an error conditi...