https://cve.radiocsirt.org Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Wed, 07 Oct 2026 07:00:03 +0000 https://cve.radiocsirt.org/vuln/cve-2022-49675 <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>tick/nohz: unexport __init-annotated tick_nohz_full_setup()</p> <p>EXPORT_SYMBOL and __init is a bad combination because the .init.text section is freed up after the initialization. Hence, modules cannot use symbols annotated __init. The access to a freed symbol may end up with kernel panic.</p> <p>modpost used to detect it, but it had been broken for a decade.</p> <p>Commit 28438794aba4 (&#34;modpost: fix section mismatch check for exported init/exit sections&#34;) fixed it so modpost started to warn it again, then this showed up:</p> <p>MODPOST vmlinux.symvers WARNING: modpost: vmlinux.o(___ksymtab_gpl+tick_nohz_full_setup+0x0): Section mismatch in reference from the variable __ksymtab_tick_nohz_full_setup to the function .init.text:tick_nohz_full_setup() The symbol tick_nohz_full_setup is exported and annotated __init Fix this by removing the __init annotation of tick_nohz_full_setup or drop the export.</p> <p>Drop the export because tick_nohz_full_setup() is only called from the built-in code in kernel/sched/isolation.c.</p> <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>tick/nohz: unexport __init-annotated tick_nohz_full_setup()</p> <p>EXPORT_SYMBOL and __init is a bad combination because the .init.text section is freed up after the initialization. Hence, modules cannot use symbols annotated __init. The access to a freed symbol may end up with kernel panic.</p> <p>modpost used to detect it, but it had been broken for a decade.</p> <p>Commit 28438794aba4 (&#34;modpost: fix section mismatch check for exported init/exit sections&#34;) fixed it so modpost started to warn it again, then this showed up:</p> <p>MODPOST vmlinux.symvers WARNING: modpost: vmlinux.o(___ksymtab_gpl+tick_nohz_full_setup+0x0): Section mismatch in reference from the variable __ksymtab_tick_nohz_full_setup to the function .init.text:tick_nohz_full_setup() The symbol tick_nohz_full_setup is exported and annotated __init Fix this by removing the __init annotation of tick_nohz_full_setup or drop the export.</p> <p>Drop the export because tick_nohz_full_setup() is only called from the built-in code in kernel/sched/isolation.c.</p> https://cve.radiocsirt.org/vuln/cve-2022-49675