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Fix a few incompatibility issues (#517)

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* kernel: Use NR_syscalls instead of SECCOMP_ARCH_NATIVE_NR
Old kernels don't has SECCOMP_ARCH_NATIVE_NR. But according to its definition,
it's equal to NR_syscalls. So use NR_syscalls instead.

* kernel: Fix wrong kernel version check
fsnotify_add_inode_mark was introduced in 4.17-rc5, not 4.12
This commit is contained in:
TwinbornPlate75
2025-11-02 19:59:29 +08:00
committed by GitHub
parent 7f2c838145
commit f87066473b
2 changed files with 4 additions and 4 deletions
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6
kernel/kernel_compat.c
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@@ -242,7 +242,7 @@ long ksu_copy_from_user_nofault(void *dst, const void __user *src, size_t size)
}
struct action_cache {
DECLARE_BITMAP(allow_native, SECCOMP_ARCH_NATIVE_NR);
DECLARE_BITMAP(allow_native, NR_syscalls);
#ifdef SECCOMP_ARCH_COMPAT
DECLARE_BITMAP(allow_compat, SECCOMP_ARCH_COMPAT_NR);
#endif
@@ -269,7 +269,7 @@ void ksu_seccomp_clear_cache(struct seccomp_filter *filter, int nr)
return;
}
if (nr >= 0 && nr < SECCOMP_ARCH_NATIVE_NR) {
if (nr >= 0 && nr < NR_syscalls) {
clear_bit(nr, filter->cache.allow_native);
}
@@ -286,7 +286,7 @@ void ksu_seccomp_allow_cache(struct seccomp_filter *filter, int nr)
return;
}
if (nr >= 0 && nr < SECCOMP_ARCH_NATIVE_NR) {
if (nr >= 0 && nr < NR_syscalls) {
set_bit(nr, filter->cache.allow_native);
}