Does every syscall require at most 1 capability on Linux?
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I am trying to understand the relationship between capabilities and syscalls on Linux.
As far as I know, the capabilities of a process are only ever considered when that process calls a syscall. When some syscalls are called with certain arguments, the syscall will only succeed when that process has certain capabilities.
Is it the case that for a particular syscall with particular arguments to succeed only one capability will ever be required? Or do some syscalls require multiple capabilities when called with a particular set of (or any) arguments?
linux kernel linux-kernel capabilities syscalls
asked Nov 20 at 22:32
dippynark
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up vote
1
down vote
favorite
I am trying to understand the relationship between capabilities and syscalls on Linux.
As far as I know, the capabilities of a process are only ever considered when that process calls a syscall. When some syscalls are called with certain arguments, the syscall will only succeed when that process has certain capabilities.
Is it the case that for a particular syscall with particular arguments to succeed only one capability will ever be required? Or do some syscalls require multiple capabilities when called with a particular set of (or any) arguments?
linux kernel linux-kernel capabilities syscalls
asked Nov 20 at 22:32
dippynark
1345
add a comment |
up vote
1
down vote
favorite
up vote
1
down vote
favorite
I am trying to understand the relationship between capabilities and syscalls on Linux.
As far as I know, the capabilities of a process are only ever considered when that process calls a syscall. When some syscalls are called with certain arguments, the syscall will only succeed when that process has certain capabilities.
Is it the case that for a particular syscall with particular arguments to succeed only one capability will ever be required? Or do some syscalls require multiple capabilities when called with a particular set of (or any) arguments?
linux kernel linux-kernel capabilities syscalls
asked Nov 20 at 22:32
dippynark
1345
I am trying to understand the relationship between capabilities and syscalls on Linux.
As far as I know, the capabilities of a process are only ever considered when that process calls a syscall. When some syscalls are called with certain arguments, the syscall will only succeed when that process has certain capabilities.
Is it the case that for a particular syscall with particular arguments to succeed only one capability will ever be required? Or do some syscalls require multiple capabilities when called with a particular set of (or any) arguments?
linux kernel linux-kernel capabilities syscalls
linux kernel linux-kernel capabilities syscalls
asked Nov 20 at 22:32
dippynark
1345
asked Nov 20 at 22:32
dippynark
1345
asked Nov 20 at 22:32
dippynark
1345
asked Nov 20 at 22:32
dippynark
1345
asked Nov 20 at 22:32
dippynark
1345
1345
add a comment |
add a comment |
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