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Merge d04937ae94 ("x86/speculation: Warn about eIBRS + LFENCE + Unprivileged eBPF + SMT") into android12-5.10-lts

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Steps on the way to 5.10.105

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I76951de21f6efca47dab5f20ad20d588f46729d0
This commit is contained in:
Greg Kroah-Hartman
2022-03-14 19:56:29 +01:00
parent 0773736e48 d04937ae94
commit d221da1d6f
8 changed files with 222 additions and 80 deletions
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7
kernel/sysctl.c
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@@ -237,6 +237,10 @@ static int bpf_stats_handler(struct ctl_table *table, int write,
return ret;
}
void __weak unpriv_ebpf_notify(int new_state)
{
}
static int bpf_unpriv_handler(struct ctl_table *table, int write,
void *buffer, size_t *lenp, loff_t *ppos)
{
@@ -254,6 +258,9 @@ static int bpf_unpriv_handler(struct ctl_table *table, int write,
return -EPERM;
*(int *)table->data = unpriv_enable;
}
unpriv_ebpf_notify(unpriv_enable);
return ret;
}
#endif /* CONFIG_BPF_SYSCALL && CONFIG_SYSCTL */