https://cve.radiocsirt.org Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Mon, 05 Oct 2026 23:25:46 +0000 https://cve.radiocsirt.org/vuln/cve-2023-52598 <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>s390/ptrace: handle setting of fpc register correctly</p> <p>If the content of the floating point control (fpc) register of a traced process is modified with the ptrace interface the new value is tested for validity by temporarily loading it into the fpc register.</p> <p>This may lead to corruption of the fpc register of the tracing process: if an interrupt happens while the value is temporarily loaded into the fpc register, and within interrupt context floating point or vector registers are used, the current fp/vx registers are saved with save_fpu_regs() assuming they belong to user space and will be loaded into fp/vx registers when returning to user space.</p> <p>test_fp_ctl() restores the original user space fpc register value, however it will be discarded, when returning to user space.</p> <p>In result the tracer will incorrectly continue to run with the value that was supposed to be used for the traced process.</p> <p>Fix this by saving fpu register contents with save_fpu_regs() before using test_fp_ctl().</p> <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>s390/ptrace: handle setting of fpc register correctly</p> <p>If the content of the floating point control (fpc) register of a traced process is modified with the ptrace interface the new value is tested for validity by temporarily loading it into the fpc register.</p> <p>This may lead to corruption of the fpc register of the tracing process: if an interrupt happens while the value is temporarily loaded into the fpc register, and within interrupt context floating point or vector registers are used, the current fp/vx registers are saved with save_fpu_regs() assuming they belong to user space and will be loaded into fp/vx registers when returning to user space.</p> <p>test_fp_ctl() restores the original user space fpc register value, however it will be discarded, when returning to user space.</p> <p>In result the tracer will incorrectly continue to run with the value that was supposed to be used for the traced process.</p> <p>Fix this by saving fpu register contents with save_fpu_regs() before using test_fp_ctl().</p> https://cve.radiocsirt.org/vuln/cve-2023-52598