| Commit message (Collapse) | Author | Age |
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fsec-optimize: Optimize BPF with current seccomp error action, not
just KILL
fseccomp: use correct BPF code for errno action
firejail: honor seccomp error action for X32 and secondary filters,
rebuild filters if the error action is changed
Closes: #3933
Signed-off-by: Topi Miettinen <toiwoton@gmail.com>
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Allow `log` as an alternative seccomp error action instead of killing
or returning an errno code.
Signed-off-by: Topi Miettinen <toiwoton@gmail.com>
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Let user specify the action when seccomp filters trigger:
- errno name like EPERM (default) or ENOSYS: return errno and let the process continue.
- 'kill': kill the process as previous versions
The default action is EPERM, but killing can still be specified with
syscall:kill syntax or globally with seccomp-error-action=kill. The
action can be also overridden /etc/firejail/firejail.config file.
Not killing the process weakens Firejail slightly when trying to
contain intrusion, but it may also allow tighter filters if the
only alternative is to allow a system call.
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Add a feature for a new (opt-in) command line switch and config file
option to block secondary architectures entirely. Also block changing
Linux execution domain with personality() system call for the primary
architecture.
Closes #1479
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