CVE-2022-49755

CVE-2022-49755 affects the Linux kernel’s USB gadget path (usb: gadget: f_fs) and specifically the ffs_ep0_queue_wait flow. The vulnerability arises from a race between ffs_ep0_write/ffs_ep0_read and functionfs_unbind, where ep0req can be freed and there is no NULL check in ffs_ep0_queue_wait, ri...

CVE-2022-49755 usb: gadget: f_fs: Prevent race during ffs_ep0_queue_wait

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: ffs: Prevent race during ffsep0queuewait While performing fast composition switch, there is a possibility that the process of ffsep0write/ffsep0read get into a race condition due to ep0req being freed up from...

CVE-2022-49755 usb: gadget: f_fs: Prevent race during ffs_ep0_queue_wait

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: ffs: Prevent race during ffsep0queuewait While performing fast composition switch, there is a possibility that the process of ffsep0write/ffsep0read get into a race condition due to ep0req being freed up from...

CVE-2022-49742 f2fs: initialize locks earlier in f2fs_fill_super()

In the Linux kernel, the following vulnerability has been resolved: f2fs: initialize locks earlier in f2fsfillsuper syzbot is reporting lockdep warning at f2fshandleerror 1, for spinlock&sbi-errorlock is called before spinlockinit is called. For safe locking in error handling, move initialization...

CVE-2022-49742

The CVE-2022-49742 issue affects the Linux kernel’s f2fs code. It describes a lock initialization order problem where spin_lock(&sbi->error_lock) is taken before spin_lock_init() is called, flagging a lockdep warning in f2fs_handle_error(). The recommended remediation is to initialize locks (a...

CVE-2022-49742 f2fs: initialize locks earlier in f2fs_fill_super()

In the Linux kernel, the following vulnerability has been resolved: f2fs: initialize locks earlier in f2fsfillsuper syzbot is reporting lockdep warning at f2fshandleerror 1, for spinlock&sbi-errorlock is called before spinlockinit is called. For safe locking in error handling, move initialization...

CVE-2022-49742 f2fs: initialize locks earlier in f2fs_fill_super()

In the Linux kernel, the following vulnerability has been resolved: f2fs: initialize locks earlier in f2fsfillsuper syzbot is reporting lockdep warning at f2fshandleerror 1, for spinlock&sbi-errorlock is called before spinlockinit is called. For safe locking in error handling, move initialization...

CVE-2022-49742

In the Linux kernel, the following vulnerability has been resolved: f2fs: initialize locks earlier in f2fsfillsuper syzbot is reporting lockdep warning at f2fshandleerror 1, for spinlock&sbi-errorlock is called before spinlockinit is called. For safe locking in error handling, move initialization...

CVE-2023-52935

CVE-2023-52935 refers to a Linux kernel vulnerability in mm/khugepaged related to an ->anon_vma race when removing page tables. The issue could allow concurrent access to page tables during rmap traversal if an anon_vma is shared; the fix adds a re-check after acquiring the mmap lock so there ...

CVE-2023-52930 drm/i915: Fix potential bit_17 double-free

In the Linux kernel, the following vulnerability has been resolved: drm/i915: Fix potential bit17 double-free A userspace with multiple threads racing I915GEMSETTILING to set the tiling to I915TILINGNONE could trigger a double free of the bit17 bitmask. Or conversely leak memory on the transition...

CVE-2025-21889

In the Linux kernel, the following vulnerability has been resolved: perf/core: Add RCU read lock protection to perfiteratectx The perfiteratectx function performs RCU list traversal but currently lacks RCU read lock protection. This causes lockdep warnings when running perf probe with unshare1...

DEBIAN-CVE-2025-21889

In the Linux kernel, the following vulnerability has been resolved: perf/core: Add RCU read lock protection to perfiteratectx The perfiteratectx function performs RCU list traversal but currently lacks RCU read lock protection. This causes lockdep warnings when running perf probe with unshare1...

DEBIAN-CVE-2025-21876

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Fix suspicious RCU usage Commit "iommu/vt-d: Allocate DMAR fault interrupts locally" moved the call to enabledrhdfaulthandling to a code path that does not hold any lock while traversing the drhd list. Fix it by...

CVE-2025-21875

In the Linux kernel, the following vulnerability has been resolved: mptcp: always handle address removal under msk socket lock Syzkaller reported a lockdep splat in the PM control path: WARNING: CPU: 0 PID: 6693 at ./include/net/sock.h:1711 sockownedbyme include/net/sock.h:1711 inline WARNING: CP...

UBUNTU-CVE-2025-21876

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Fix suspicious RCU usage Commit "iommu/vt-d: Allocate DMAR fault interrupts locally" moved the call to enabledrhdfaulthandling to a code path that does not hold any lock while traversing the drhd list. Fix it by...

UBUNTU-CVE-2025-21889

In the Linux kernel, the following vulnerability has been resolved: perf/core: Add RCU read lock protection to perfiteratectx The perfiteratectx function performs RCU list traversal but currently lacks RCU read lock protection. This causes lockdep warnings when running perf probe with unshare1...

CVE-2025-21889 perf/core: Add RCU read lock protection to perf_iterate_ctx()

In the Linux kernel, the following vulnerability has been resolved: perf/core: Add RCU read lock protection to perfiteratectx The perfiteratectx function performs RCU list traversal but currently lacks RCU read lock protection. This causes lockdep warnings when running perf probe with unshare1...

CVE-2025-21889 perf/core: Add RCU read lock protection to perf_iterate_ctx()

In the Linux kernel, the following vulnerability has been resolved: perf/core: Add RCU read lock protection to perfiteratectx The perfiteratectx function performs RCU list traversal but currently lacks RCU read lock protection. This causes lockdep warnings when running perf probe with unshare1...

CVE-2025-21889

Technical details for CVE-2025-21889 are not publicly provided in the supplied documents. No affected products, root cause, or patch information are confirmed here. Monitor vendor advisories for updates.

CVE-2025-21889

In the Linux kernel, the following vulnerability has been resolved: perf/core: Add RCU read lock protection to perfiteratectx The perfiteratectx function performs RCU list traversal but currently lacks RCU read lock protection. This causes lockdep warnings when running perf probe with unshare1...