{bp-19854} fs/vfs/fs_read.c: Allow NULL iov_base when CONFIG_ARCH_TEXT_VBASE == 0 - #20068
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For kernel builds where CONFIG_ARCH_TEXT_VBASE is set to 0, allow a NULL buffer in file_readv() to prevent ELF binary loading failures for binaries located at address 0. This fix was originally introduced in apache#18830, but was inadvertently reverted by someone unaware that platforms with CONFIG_ARCH_TEXT_VBASE equal to 0 cannot function at all without it. This commit restores the necessary check to prevent regressions in zero-based text kernel configurations. Most platforms remain completely unaffected since only about 5 boards utilize a text virtual base of zero. Signed-off-by: Lwazi Dube <lwazeh@gmail.com>
jerpelea
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cederom,
linguini1 and
xiaoxiang781216
September 7, 2026 08:13
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cederom
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Sep 7, 2026
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xiaoxiang781216
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Summary
For kernel builds where CONFIG_ARCH_TEXT_VBASE is set to 0, allow a NULL buffer in file_readv() to prevent ELF binary loading failures for binaries located at address 0.
This fix was originally introduced in #18830, but was inadvertently reverted by someone unaware that platforms with CONFIG_ARCH_TEXT_VBASE equal to 0 cannot function at all without it. This commit restores the necessary check to prevent regressions in zero-based text kernel configurations. Most platforms remain completely unaffected since only about 5 boards utilize a text virtual base of zero.
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