user/sven/linux.git/kernel/audit.h, branch v6.1.12

audit: remove selinux_audit_rule_update() declaration

2022-09-07T15:30:15Z

selinux_audit_rule_update() has been renamed to audit_update_lsm_rules() since commit d7a96f3a1ae2 ("Audit: internally use the new LSM audit hooks"), so remove it. Signed-off-by: Xiu Jianfeng Signed-off-by: Paul Moore

audit: audit_context pid unused, context enum comment fix

2022-08-26T21:06:00Z

The pid member of struct audit_context is never used. Remove it. The audit_reset_context() comment about unconditionally resetting "ctx->state" should read "ctx->context". Signed-off-by: Richard Guy Briggs Signed-off-by: Paul Moore

audit: log AUDIT_TIME_* records only from rules

2022-02-22T18:51:40Z

AUDIT_TIME_* events are generated when there are syscall rules present that are not related to time keeping. This will produce noisy log entries that could flood the logs and hide events we really care about. Rather than immediately produce the AUDIT_TIME_* records, store the data in the context and log it at syscall exit time respecting the filter rules. Note: This eats the audit_buffer, unlike any others in show_special(). Please see https://bugzilla.redhat.com/show_bug.cgi?id=1991919 Fixes: 7e8eda734d30 ("ntp: Audit NTP parameters adjustment") Fixes: 2d87a0674bd6 ("timekeeping: Audit clock adjustments") Signed-off-by: Richard Guy Briggs [PM: fixed style/whitespace issues] Signed-off-by: Paul Moore

Merge tag 'audit-pr-20211101' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit

2021-11-02T04:17:39Z

Pull audit updates from Paul Moore: "Add some additional audit logging to capture the openat2() syscall open_how struct info. Previous variations of the open()/openat() syscalls allowed audit admins to inspect the syscall args to get the information contained in the new open_how struct used in openat2()" * tag 'audit-pr-20211101' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit: audit: return early if the filter rule has a lower priority audit: add OPENAT2 record to list "how" info audit: add support for the openat2 syscall audit: replace magic audit syscall class numbers with macros lsm_audit: avoid overloading the "key" audit field audit: Convert to SPDX identifier audit: rename struct node to struct audit_node to prevent future name collisions

audit: add OPENAT2 record to list "how" info

2021-10-04T16:09:27Z

Since the openat2(2) syscall uses a struct open_how pointer to communicate its parameters they are not usefully recorded by the audit SYSCALL record's four existing arguments. Add a new audit record type OPENAT2 that reports the parameters in its third argument, struct open_how with fields oflag, mode and resolve. The new record in the context of an event would look like: time->Wed Mar 17 16:28:53 2021 type=PROCTITLE msg=audit(1616012933.531:184): proctitle= 73797363616C6C735F66696C652F6F70656E617432002F746D702F61756469742D 7465737473756974652D737641440066696C652D6F70656E617432 type=PATH msg=audit(1616012933.531:184): item=1 name="file-openat2" inode=29 dev=00:1f mode=0100600 ouid=0 ogid=0 rdev=00:00 obj=unconfined_u:object_r:user_tmp_t:s0 nametype=CREATE cap_fp=0 cap_fi=0 cap_fe=0 cap_fver=0 cap_frootid=0 type=PATH msg=audit(1616012933.531:184): item=0 name="/root/rgb/git/audit-testsuite/tests" inode=25 dev=00:1f mode=040700 ouid=0 ogid=0 rdev=00:00 obj=unconfined_u:object_r:user_tmp_t:s0 nametype=PARENT cap_fp=0 cap_fi=0 cap_fe=0 cap_fver=0 cap_frootid=0 type=CWD msg=audit(1616012933.531:184): cwd="/root/rgb/git/audit-testsuite/tests" type=OPENAT2 msg=audit(1616012933.531:184): oflag=0100302 mode=0600 resolve=0xa type=SYSCALL msg=audit(1616012933.531:184): arch=c000003e syscall=437 success=yes exit=4 a0=3 a1=7ffe315f1c53 a2=7ffe315f1550 a3=18 items=2 ppid=528 pid=540 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=ttyS0 ses=1 comm="openat2" exe="/root/rgb/git/audit-testsuite/tests/syscalls_file/openat2" subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 key="testsuite-1616012933-bjAUcEPO" Link: https://lore.kernel.org/r/d23fbb89186754487850367224b060e26f9b7181.1621363275.git.rgb@redhat.com Signed-off-by: Richard Guy Briggs Acked-by: Christian Brauner [PM: tweak subject, wrap example, move AUDIT_OPENAT2 to 1337] Signed-off-by: Paul Moore

audit,io_uring,io-wq: add some basic audit support to io_uring

2021-09-20T02:10:44Z

This patch adds basic auditing to io_uring operations, regardless of their context. This is accomplished by allocating audit_context structures for the io-wq worker and io_uring SQPOLL kernel threads as well as explicitly auditing the io_uring operations in io_issue_sqe(). Individual io_uring operations can bypass auditing through the "audit_skip" field in the struct io_op_def definition for the operation; although great care must be taken so that security relevant io_uring operations do not bypass auditing; please contact the audit mailing list (see the MAINTAINERS file) with any questions. The io_uring operations are audited using a new AUDIT_URINGOP record, an example is shown below: type=UNKNOWN[1336] msg=audit(1631800225.981:37289): uring_op=19 success=yes exit=0 items=0 ppid=15454 pid=15681 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 key=(null) Thanks to Richard Guy Briggs for review and feedback. Signed-off-by: Paul Moore

audit: prepare audit_context for use in calling contexts beyond syscalls

2021-09-20T02:10:32Z

This patch cleans up some of our audit_context handling by abstracting out the reset and return code fixup handling to dedicated functions. Not only does this help make things easier to read and inspect, it allows for easier reuse by future patches. We also convert the simple audit_context->in_syscall flag into an enum which can be used to by future patches to indicate a calling context other than the syscall context. Thanks to Richard Guy Briggs for review and feedback. Acked-by: Richard Guy Briggs Signed-off-by: Paul Moore

audit: add header protection to kernel/audit.h

2021-07-20T02:38:24Z

Protect kernel/audit.h against multiple #include's. Signed-off-by: MaYuming [PM: rewrite subj/description] Signed-off-by: Paul Moore

audit: remove trailing spaces and tabs

2021-06-11T00:59:05Z

Run the following command to find and remove the trailing spaces and tabs: sed -r -i 's/[ \t]+$//' The files to be checked are as follows: kernel/audit* include/linux/audit.h include/uapi/linux/audit.h Signed-off-by: Zhen Lei Acked-by: Richard Guy Briggs Signed-off-by: Paul Moore

audit: Rename enum audit_state constants to avoid AUDIT_DISABLED redefinition

2021-06-09T02:05:24Z

AUDIT_DISABLED defined in kernel/audit.h as element of enum audit_state and redefined in kernel/audit.c. This produces a warning when kernel builds with syscalls audit disabled and brokes kernel build if -Werror used. enum audit_state used in syscall audit code only. This patch changes enum audit_state constants prefix AUDIT to AUDIT_STATE to avoid AUDIT_DISABLED redefinition. Signed-off-by: Sergey Nazarov Acked-by: Richard Guy Briggs Signed-off-by: Paul Moore