DEBIAN-CVE-2021-47608

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix kernel address leakage in atomic fetch The change in commit 37086bfdc737 "bpf: Propagate stack bounds to registers in atomics w/ BPFFETCH" around checkmemaccess handling is buggy since this would allow for unprivileged...

CVE-2021-47608 bpf: Fix kernel address leakage in atomic fetch

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix kernel address leakage in atomic fetch The change in commit 37086bfdc737 "bpf: Propagate stack bounds to registers in atomics w/ BPFFETCH" around checkmemaccess handling is buggy since this would allow for unprivileged...

CVE-2021-47608

CVE-2021-47608 involves a bug in the Linux kernel BPF fetch path (bpf: Fix kernel address leakage in atomic fetch) where a faulty check_mem_access() handling could cause leakage of kernel pointers from spilled stack registers when performing atomic XADD. The issue arises in the BPF_FETCH path, wh...