CVE-2023-52849 cxl/mem: Fix shutdown order

In the Linux kernel, the following vulnerability has been resolved: cxl/mem: Fix shutdown order Ira reports that removing cxlmockmem causes a crash with the following trace: BUG: kernel NULL pointer dereference, address: 0000000000000044 .. RIP: 0010:cxlregiondecodereset+0x7f/0x180 cxlcore .. Cal...

CVE-2023-52849 cxl/mem: Fix shutdown order

In the Linux kernel, the following vulnerability has been resolved: cxl/mem: Fix shutdown order Ira reports that removing cxlmockmem causes a crash with the following trace: BUG: kernel NULL pointer dereference, address: 0000000000000044 .. RIP: 0010:cxlregiondecodereset+0x7f/0x180 cxlcore .. Cal...

CVE-2023-52849

CVE-2023-52849 is a Linux kernel vulnerability related to CXL memory shutdown order. The issue caused a NULL pointer dereference during teardown when removing cxl_mock_mem, tracing through cxl_region_decode_reset and related cleanup paths (cxl_region_detach, cxld_unregister, devres_release_all, d...

CVE-2023-52849

In the Linux kernel, the following vulnerability has been resolved: cxl/mem: Fix shutdown order Ira reports that removing cxlmockmem causes a crash with the following trace: BUG: kernel NULL pointer dereference, address: 0000000000000044 .. RIP: 0010:cxlregiondecodereset+0x7f/0x180 cxlcore .. Cal...

CVE-2023-52792

In the Linux kernel, the following vulnerability has been resolved: cxl/region: Do not try to cleanup after cxlregionsetuptargets fails Commit 5e42bcbc3fef "cxl/region: decrement -nrtargets on error in cxlregionattach" tried to avoid 'eiw' initialization errors when -nrtargets exceeded 16, by jus...

CVE-2023-52792

Summary (CVE-2023-52792) The Linux kernel cxl/region cleanup path incorrectly reused resources when cxl_region_setup_targets() failed, risking -EBUSY on decoder region and possible resource leakage. The fix short-circuits cleanup on initialization failure (return immediately) and adds a guard to ...

CVE-2023-52792 cxl/region: Do not try to cleanup after cxl_region_setup_targets() fails

In the Linux kernel, the following vulnerability has been resolved: cxl/region: Do not try to cleanup after cxlregionsetuptargets fails Commit 5e42bcbc3fef "cxl/region: decrement -nrtargets on error in cxlregionattach" tried to avoid 'eiw' initialization errors when -nrtargets exceeded 16, by jus...

CVE-2023-52771 cxl/port: Fix delete_endpoint() vs parent unregistration race

In the Linux kernel, the following vulnerability has been resolved: cxl/port: Fix deleteendpoint vs parent unregistration race The CXL subsystem, at cxlmem -probe time, establishes a lineage of ports struct cxlport objects between an endpoint and the root of a CXL topology. Each port including th...

CVE-2023-52771 cxl/port: Fix delete_endpoint() vs parent unregistration race

In the Linux kernel, the following vulnerability has been resolved: cxl/port: Fix deleteendpoint vs parent unregistration race The CXL subsystem, at cxlmem -probe time, establishes a lineage of ports struct cxlport objects between an endpoint and the root of a CXL topology. Each port including th...

CVE-2023-52771

CVE-2023-52771 affects the Linux kernel CXL stack. The issue is a race between delete_endpoint() teardown and parent unregistration, which can impact the cxl_mem/cxl_port topology during port removal. The provided description states two fixes: (1) acquire a reference on the parent to prevent use‑...

CVE-2023-52771

In the Linux kernel, the following vulnerability has been resolved: cxl/port: Fix deleteendpoint vs parent unregistration race The CXL subsystem, at cxlmem -probe time, establishes a lineage of ports struct cxlport objects between an endpoint and the root of a CXL topology. Each port including th...

CVE-2023-52771 cxl/port: Fix delete_endpoint() vs parent unregistration race

In the Linux kernel, the following vulnerability has been resolved: cxl/port: Fix deleteendpoint vs parent unregistration race The CXL subsystem, at cxlmem -probe time, establishes a lineage of ports struct cxlport objects between an endpoint and the root of a CXL topology. Each port including th...

CVE-2022-48707

CVE-2022-48707 (Linux kernel, cxl/region) : The issue arises when destroying a region that includes a host bridge with a single root port and a decoupled HDM/CXL device, where the region driver creates a special pass-through decoder without a commit/reset callback. Before the fix, the ->reset(...

CVE-2022-48707

In the Linux kernel, the following vulnerability has been resolved: cxl/region: Fix null pointer dereference for resetting decoder Not all decoders have a reset callback. The CXL specification allows a host bridge with a single root port to have no explicit HDM decoders. Currently the region driv...

CVE-2022-48707 cxl/region: Fix null pointer dereference for resetting decoder

In the Linux kernel, the following vulnerability has been resolved: cxl/region: Fix null pointer dereference for resetting decoder Not all decoders have a reset callback. The CXL specification allows a host bridge with a single root port to have no explicit HDM decoders. Currently the region driv...

CVE-2022-48707 cxl/region: Fix null pointer dereference for resetting decoder

In the Linux kernel, the following vulnerability has been resolved: cxl/region: Fix null pointer dereference for resetting decoder Not all decoders have a reset callback. The CXL specification allows a host bridge with a single root port to have no explicit HDM decoders. Currently the region driv...

CVE-2022-48707 cxl/region: Fix null pointer dereference for resetting decoder

In the Linux kernel, the following vulnerability has been resolved: cxl/region: Fix null pointer dereference for resetting decoder Not all decoders have a reset callback. The CXL specification allows a host bridge with a single root port to have no explicit HDM decoders. Currently the region driv...

Linux kernel 安全漏洞

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 Linux kernel that stems from a race condition vulnerability in the cxl/port module...

Linux kernel 安全漏洞

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 Linux kernel that stems from a null pointer dereference vulnerability in the cxl/region module...

Linux kernel 安全漏洞

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 Linux kernel, which stems from a vulnerability in the cxl/region module...