Zbigniew Jędrzejewski-Szmek
85830b0d62
Fixes https://github.com/systemd/systemd/issues/34780. The number in the header is the size of the *compressed* data, so for gzip we'd read the initial part of the decompressed data (equal to the size of the compressed data) and not find the version string. Later on, Fedora switched to zstd compression, and there we correctly use the number as the size of the compressed data, so we stopped hitting the issue, but we should still fix it for older kernels. I verified that the fix works for gzip-compressed kernels. I also made the same change for the code for lzma compression. I'm pretty sure it is the right thing, even though I don't have such a kernel at hand to test. >>> ukify.Uname.scrape('/lib/modules/6.12.0-0.rc2.24.fc42.aarch64/vmlinuz') Real-Mode Kernel Header magic not found + readelf --notes /lib/modules/6.12.0-0.rc2.24.fc42.aarch64/vmlinuz readelf: Error: Not an ELF file - it has the wrong magic bytes at the start Found uname version: 6.12.0-0.rc2.24.fc42.aarch64
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