Understanding the challenges of securing an NGO

Welcome to this week's edition of the Threat Source newsletter. Recently, I was invited to sit on a panel at the CIO4Good Conference here in Washington D.C., where I talked about incident response and cyber preparedness to a room full of CIOs who help lead wonderful missions to help others. I'm...

DEBIAN-CVE-2022-49876

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix general-protection-fault in ieee80211subifstartxmit When device is running and the interface status is changed, the gpf issue is triggered. The problem triggering process is as follows: Thread A: Thread B...

CVE-2022-49876

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix general-protection-fault in ieee80211subifstartxmit When device is running and the interface status is changed, the gpf issue is triggered. The problem triggering process is as follows: Thread A: Thread B...

CVE-2022-49799

In the Linux kernel, the following vulnerability has been resolved: tracing: Fix wild-memory-access in registersynthevent In registersynthevent, if setsyntheventprintfmt failed, then both traceremoveeventcall and unregistertraceevent will be called, which means the traceeventcall will call...

UBUNTU-CVE-2022-49876

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix general-protection-fault in ieee80211subifstartxmit When device is running and the interface status is changed, the gpf issue is triggered. The problem triggering process is as follows: Thread A: Thread B...

UBUNTU-CVE-2022-49763

In the Linux kernel, the following vulnerability has been resolved: ntfs: fix use-after-free in ntfsattrfind Patch series "ntfs: fix bugs about Attribute", v2. This patchset fixes three bugs relative to Attribute in record: Patch 1 adds a sanity check to ensure that, attrsoffset field in first mf...

Why is Ransomware Still a Thing in 2025?

When was the last time you had a serious conversation about cybersecurity that didn’t touch on ransomware? We all know that it’s one of the most persistent and damaging threats out there. Yet, this isn’t because it’s new—ransomware’s been around since 1989—but because we are making it far too eas...

CVE-2025-37765

In the Linux kernel, the following vulnerability has been resolved: drm/nouveau: prime: fix ttmbodelayeddelete oops Fix an oops in ttmbodelayeddelete which results from dererencing a dangling pointer: Oops: general protection fault, probably for non-canonical address 0x6b6b6b6b6b6b6b7b: 0000 1...

UBUNTU-CVE-2025-37765

In the Linux kernel, the following vulnerability has been resolved: drm/nouveau: prime: fix ttmbodelayeddelete oops Fix an oops in ttmbodelayeddelete which results from dererencing a dangling pointer: Oops: general protection fault, probably for non-canonical address 0x6b6b6b6b6b6b6b7b: 0000 1...

CVE-2022-49876 wifi: mac80211: fix general-protection-fault in ieee80211_subif_start_xmit()

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix general-protection-fault in ieee80211subifstartxmit When device is running and the interface status is changed, the gpf issue is triggered. The problem triggering process is as follows: Thread A: Thread B...

CVE-2022-49876 wifi: mac80211: fix general-protection-fault in ieee80211_subif_start_xmit()

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix general-protection-fault in ieee80211subifstartxmit When device is running and the interface status is changed, the gpf issue is triggered. The problem triggering process is as follows: Thread A: Thread B...

CVE-2022-49876 wifi: mac80211: fix general-protection-fault in ieee80211_subif_start_xmit()

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix general-protection-fault in ieee80211subifstartxmit When device is running and the interface status is changed, the gpf issue is triggered. The problem triggering process is as follows: Thread A: Thread B...

CVE-2022-49876

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix general-protection-fault in ieee80211subifstartxmit When device is running and the interface status is changed, the gpf issue is triggered. The problem triggering process is as follows: Thread A: Thread B...

CVE-2022-49876

Summary: CVE-2022-49876 is a Linux kernel vulnerability in wifi/mac80211 that causes a general-protection fault when an interface’s status changes during active transmission. The issue stems from accessing sdata->bss after it is set to NULL during ieee80211_runtime_change_iftype/ieee80211_do_s...

CVE-2022-49799

Summary of CVE-2022-49799 (Linux kernel): The vulnerability resides in the tracing subsys, specifically register_synth_event(), where if set_synth_event_print_fmt() fails, the code may call trace_remove_event_call() and unregister_trace_event() twice, causing the trace_event_call to invoke __unre...

UBUNTU-CVE-2025-23141

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Acquire SRCU in KVMGETMPSTATE to protect guest memory accesses Acquire a lock on kvm-srcu when userspace is getting MP state to handle a rather extreme edge case where "accepting" APIC events, i.e. processing pending IN...

CVE-2025-37776

CVE-2025-37776 : In the Linux kernel, ksmbd has a use-after-free in smb_break_all_levII_oplock() caused by a race when unlocking in the middle of the loop. A patch adds a read lock to protect the whole loop. This vulnerability has a local attack vector with high impact (C/H/I/A) per CVSS v3.1, an...

CVE-2025-37765

Summary (CVE-2025-37765): The Linux kernel DRM Nouveau path had a delayed-delete oops during ttm_bo_delayed_delete. The root cause is a dangling nouveau_bo.resv pointer after dma_buf destruction frees amdgpu_bo, and the subsequent ttm_bo_delayed_delete dereferences that pointer, causing a general...

CVE-2025-37765 drm/nouveau: prime: fix ttm_bo_delayed_delete oops

In the Linux kernel, the following vulnerability has been resolved: drm/nouveau: prime: fix ttmbodelayeddelete oops Fix an oops in ttmbodelayeddelete which results from dererencing a dangling pointer: Oops: general protection fault, probably for non-canonical address 0x6b6b6b6b6b6b6b7b: 0000 1...

CVE-2025-37741

In the Linux kernel, the following vulnerability has been resolved: jfs: Prevent copying of nlink with value 0 from disk inode syzbot report a deadlock in diFree. 1 When calling "ioctl$LOOPSETSTATUS64", the offset value passed in is 4, which does not match the mounted loop device, causing the...