CVE-2026-43121

CVE-2026-43121 involves the Linux kernel io_uring/zcrx race between scrub and refill paths. The non-atomic read-then-decrement of the user_refs can race with io_zcrx_scrub() using atomic_xchg, causing a double-free of a niov and an out-of-bounds write past the freelist array. The fix replaces the...

Linux Distros Unpatched Vulnerability : CVE-2021-47607

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: bpf: Fix kernel address leakage in atomic cmpxchg's r0 aux reg The implementation of...

CVE-2021-47607

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix kernel address leakage in atomic cmpxchg's r0 aux reg The implementation of BPFCMPXCHG on a high level has the following parameters: .-old-val .-new-val BPFR0 = cmpxchg32,64DSTREG + insn-off, BPFR0, SRCREG -mem-loc...

CVE-2021-47607

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix kernel address leakage in atomic cmpxchg's r0 aux reg The implementation of BPFCMPXCHG on a high level has the following parameters: .-old-val .-new-val BPFR0 = cmpxchg32,64DSTREG + insn-off, BPFR0, SRCREG -mem-loc...

CVE-2021-47607 bpf: Fix kernel address leakage in atomic cmpxchg's r0 aux reg

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix kernel address leakage in atomic cmpxchg's r0 aux reg The implementation of BPFCMPXCHG on a high level has the following parameters: .-old-val .-new-val BPFR0 = cmpxchg32,64DSTREG + insn-off, BPFR0, SRCREG -mem-loc...