CVE-2026-90209 s390/debug: Fix deadlock during unregister

In the Linux kernel, the following vulnerability has been resolved: s390/debug: Fix deadlock during unregister Unregistering an s390dbf debug area while one of the associated debugfs files is being written to can cause a deadlock: $ echo .../vmur/level $ rmmod vmur...

CVE-2026-90209

CVE-2026-90209 affects the Linux kernel s390dbf debug subsystem . A deadlock occurs when a debug area is unregistered (e.g., via rmmod) while an associated debugfs file is simultaneously being written to. Both the unregister path (debug_unregister() → debugfs_remove() → waiting for debugfs_file_p...

EUVD-2026-81802

In the Linux kernel, the following vulnerability has been resolved: s390/debug: Fix deadlock during unregister Unregistering an s390dbf debug area while one of the associated debugfs files is being written to can cause a deadlock: $ echo .../vmur/level $ rmmod vmur...

CVE-2026-90209 s390/debug: Fix deadlock during unregister

In the Linux kernel, the following vulnerability has been resolved: s390/debug: Fix deadlock during unregister Unregistering an s390dbf debug area while one of the associated debugfs files is being written to can cause a deadlock: $ echo .../vmur/level $ rmmod vmur...

CVE-2026-90085 octeontx2-af: fix NULL deref in NIX TM tree debugfs read path

In the Linux kernel, the following vulnerability has been resolved: octeontx2-af: fix NULL deref in NIX TM tree debugfs read path rvudbgnixtmtreedisplay dereferences pfvf-sqctx without checking whether the SQ context has been allocated. Reading /sys/kernel/debug/octeontx2/nix/tmtree for a NIX LF...

PT-2026-94764

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A stack out-of-bounds read exists in the RDMA/mlx5 cc params debugfs. The get param function reads a congestion parameter as a u32 but formats it using a signed %d into an 11-byte stack...

PT-2026-94557

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A deadlock can occur when unregistering an s390dbf debug area while an associated debugfs file is being written to. This happens because the debug unregister function attempts to acquire...

PT-2026-94813

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the devid write debugfs function within the AMD IOMMU driver. When the for each pci segment loop finishes without finding a matching segment, the pci seg pointer point...

PT-2026-94752

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the cros ec debugfs probe function where the notifier panic is registered with the EC panic notifier chain, but the remove path fails to unregister it before tearing...

PT-2026-94859

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A stack over-read exists in the debug output helpers of the host1x GPU driver. The functions host1x debug output and host1x debug cont utilize vsnprintf, which returns the total length t...

PT-2026-94847

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A double-free issue exists in the mtdswap component. In the mtdswap add mtd function, if a debugfs setup failure occurs after the successful registration of a blktrans device, the mbd de...

PT-2026-94567

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the RDMA/cxgb4 component where the per-device debugfs tree, created by c4iw alloc via setup debugfs, is not properly removed during registration failure. Specifically,...

CVE-2026-93061: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: gpu: host1x: Avoid stack over-read in debug output helpers host1xdebugoutput and host1xdebugcont used vsnprintf, which returns the length the formatted string would have reached with an unbounded buffer. That return value was...

CVE-2026-93049: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: mtd: mtdswap: Avoid freeing registered blktrans device twice In mtdswapaddmtd, debugfs setup failure after successful blktrans registration can free mbddev twice. addmtdblktransdev initializes the blktrans device reference and...

CVE-2026-92505: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: iommu/amd: Fix undefined behavior in devidwrite debugfs function When foreachpcisegment loop completes without finding a matching segment, the pciseg pointer is not NULL but points to an invalid memory location the list head...

CVE-2026-92477: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: debugfs: Reserve space for a string terminator ufssavederrwrite copies user input into a zero-initialized stack buffer and passes it to kstrtoint. A write that fills the entire buffer overwrites its only terminator...

CVE-2026-90416: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx5: Fix stack out-of-bounds read in ccparams debugfs getparam reads a congestion parameter as a u32 but formats it with the signed "%d" into an 11-byte stack buffer. A value with bit 31 set, such as 0x80000000, renders as...

CVE-2026-90257: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: virtiobt: avoid OOB read of build info string The virtbtsetupzephyr sends the Zephyr vendor command 0xfc08 Read Build Information and hands the response to btdevinfo and hcisetfwinfo as a "%s" string starting at skb-da...

CVE-2026-90219: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: RDMA/cxgb4: Free debugfs on registration failure c4iwalloc creates the per-device debugfs tree dev-debugfsroot via setupdebugfs, but it is removed only in c4iwremove, not in c4iwdealloc. When RDMA device registration fails, the...

CVE-2026-90209: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: s390/debug: Fix deadlock during unregister Unregistering an s390dbf debug area while one of the associated debugfs files is being written to can cause a deadlock: $ echo .../vmur/level $ rmmod vmur...