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authorYuntao Wang <ytcoode@gmail.com>2024-01-02 17:49:05 +0300
committerAndrew Morton <akpm@linux-foundation.org>2024-01-05 21:45:25 +0300
commit6dff315972640bfe542e2d044933751afd8e6c4a (patch)
treefb099685e3fc324142ae21dbe592cca96248f4fe /security/integrity/ima
parent61bb219f9d83c1619e59153b837af25873a00a43 (diff)
downloadlinux-6dff315972640bfe542e2d044933751afd8e6c4a.tar.xz
crash_core: fix and simplify the logic of crash_exclude_mem_range()
The purpose of crash_exclude_mem_range() is to remove all memory ranges that overlap with [mstart-mend]. However, the current logic only removes the first overlapping memory range. Commit a2e9a95d2190 ("kexec: Improve & fix crash_exclude_mem_range() to handle overlapping ranges") attempted to address this issue, but it did not fix all error cases. Let's fix and simplify the logic of crash_exclude_mem_range(). Link: https://lkml.kernel.org/r/20240102144905.110047-4-ytcoode@gmail.com Signed-off-by: Yuntao Wang <ytcoode@gmail.com> Acked-by: Baoquan He <bhe@redhat.com> Cc: Borislav Petkov (AMD) <bp@alien8.de> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Dave Young <dyoung@redhat.com> Cc: Hari Bathini <hbathini@linux.ibm.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Sourabh Jain <sourabhjain@linux.ibm.com> Cc: Takashi Iwai <tiwai@suse.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'security/integrity/ima')
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