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| author | Luis Chamberlain <mcgrof@kernel.org> | 2022-07-15 12:16:22 -0700 |
|---|---|---|
| committer | Paul Moore <paul@paul-moore.com> | 2022-08-26 11:19:43 -0400 |
| commit | 2a5840124009f133bd09fd855963551fb2cefe22 (patch) | |
| tree | a5d4322412e3fb7e7b372039fca8fbf6841a8893 /include/linux/security.h | |
| parent | 568035b01cfb107af8d2e4bd2fb9aea22cf5b868 (diff) | |
| download | lwn-2a5840124009f133bd09fd855963551fb2cefe22.tar.gz lwn-2a5840124009f133bd09fd855963551fb2cefe22.zip | |
lsm,io_uring: add LSM hooks for the new uring_cmd file op
io-uring cmd support was added through ee692a21e9bf ("fs,io_uring:
add infrastructure for uring-cmd"), this extended the struct
file_operations to allow a new command which each subsystem can use
to enable command passthrough. Add an LSM specific for the command
passthrough which enables LSMs to inspect the command details.
This was discussed long ago without no clear pointer for something
conclusive, so this enables LSMs to at least reject this new file
operation.
[0] https://lkml.kernel.org/r/8adf55db-7bab-f59d-d612-ed906b948d19@schaufler-ca.com
Cc: stable@vger.kernel.org
Fixes: ee692a21e9bf ("fs,io_uring: add infrastructure for uring-cmd")
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Acked-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Diffstat (limited to 'include/linux/security.h')
| -rw-r--r-- | include/linux/security.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/security.h b/include/linux/security.h index 1bc362cb413f..7bd0c490703d 100644 --- a/include/linux/security.h +++ b/include/linux/security.h @@ -2060,6 +2060,7 @@ static inline int security_perf_event_write(struct perf_event *event) #ifdef CONFIG_SECURITY extern int security_uring_override_creds(const struct cred *new); extern int security_uring_sqpoll(void); +extern int security_uring_cmd(struct io_uring_cmd *ioucmd); #else static inline int security_uring_override_creds(const struct cred *new) { @@ -2069,6 +2070,10 @@ static inline int security_uring_sqpoll(void) { return 0; } +static inline int security_uring_cmd(struct io_uring_cmd *ioucmd) +{ + return 0; +} #endif /* CONFIG_SECURITY */ #endif /* CONFIG_IO_URING */ |