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| author |   Christian Göttsche <cgzones@googlemail.com> | 2024-02-22 18:00:44 +0100 |
|---|---|---|
| committer |   Kenton Groombridge <concord@gentoo.org> | 2024-03-01 12:05:50 -0500 |
| commit | b093761cac708c6320ea8588f089cb98fd974a24 (patch) | |
| tree | 6597a76962c1616fc6e847fdae10194b00d8c08b | |
| parent | fs: mark memory pressure type as file (diff) | |
| download | hardened-refpolicy-b093761c.tar.gz hardened-refpolicy-b093761c.tar.bz2 hardened-refpolicy-b093761c.zip | |
systemd: binfmt updates
type=PROCTITLE msg=audit(21/02/24 22:54:36.708:53) : proctitle=/usr/lib/systemd/systemd-binfmt
type=SYSCALL msg=audit(21/02/24 22:54:36.708:53) : arch=x86_64 syscall=fstatfs success=yes exit=0 a0=0x5 a1=0x7ffc547fbda0 a2=0x0 a3=0x0 items=0 ppid=1 pid=694 auid=unset uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=(none) ses=unset comm=systemd-binfmt exe=/usr/lib/systemd/systemd-binfmt subj=system_u:system_r:systemd_binfmt_t:s0 key=(null)
type=AVC msg=audit(21/02/24 22:54:36.708:53) : avc: denied { getattr } for pid=694 comm=systemd-binfmt name=/ dev=binfmt_misc ino=1 scontext=system_u:system_r:systemd_binfmt_t:s0 tcontext=system_u:object_r:binfmt_misc_fs_t:s0 tclass=filesystem permissive=1
type=PROCTITLE msg=audit(21/02/24 22:54:36.708:54) : proctitle=/usr/lib/systemd/systemd-binfmt
type=PATH msg=audit(21/02/24 22:54:36.708:54) : item=0 name=/proc/self/fd/4 inode=1 dev=00:27 mode=dir,755 ouid=root ogid=root rdev=00:00 obj=system_u:object_r:binfmt_misc_fs_t:s0 nametype=NORMAL cap_fp=none cap_fi=none cap_fe=0 cap_fver=0 cap_frootid=0
type=CWD msg=audit(21/02/24 22:54:36.708:54) : cwd=/
type=SYSCALL msg=audit(21/02/24 22:54:36.708:54) : arch=x86_64 syscall=access success=yes exit=0 a0=0x7ffc547fbdf0 a1=W_OK a2=0x0 a3=0x0 items=1 ppid=1 pid=694 auid=unset uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=(none) ses=unset comm=systemd-binfmt exe=/usr/lib/systemd/systemd-binfmt subj=system_u:system_r:systemd_binfmt_t:s0 key=(null)
type=AVC msg=audit(21/02/24 22:54:36.708:54) : avc: denied { write } for pid=694 comm=systemd-binfmt name=/ dev=binfmt_misc ino=1 scontext=system_u:system_r:systemd_binfmt_t:s0 tcontext=system_u:object_r:binfmt_misc_fs_t:s0 tclass=dir permissive=1
Signed-off-by: Christian Göttsche <cgzones@googlemail.com>
Signed-off-by: Kenton Groombridge <concord@gentoo.org>
| -rw-r--r-- | policy/modules/kernel/filesystem.if | 37 | ||||
| -rw-r--r-- | policy/modules/system/systemd.te | 6 |
2 files changed, 43 insertions, 0 deletions
diff --git a/policy/modules/kernel/filesystem.if b/policy/modules/kernel/filesystem.if index 08ad5503d..ae022b6c0 100644 --- a/policy/modules/kernel/filesystem.if +++ b/policy/modules/kernel/filesystem.if @@ -604,6 +604,24 @@ interface(`fs_manage_autofs_symlinks',` ######################################## ## <summary> +## Get the attributes of binfmt_misc filesystems. +## </summary> +## <param name="domain"> +## <summary> +## Domain allowed access. +## </summary> +## </param> +# +interface(`fs_getattr_binfmt_misc_fs',` + gen_require(` + type binfmt_misc_fs_t; + ') + + allow $1 binfmt_misc_fs_t:filesystem getattr; +') + +######################################## +## <summary> ## Get the attributes of directories on ## binfmt_misc filesystems. ## </summary> @@ -624,6 +642,25 @@ interface(`fs_getattr_binfmt_misc_dirs',` ######################################## ## <summary> +## Check for permissions using access(2) of directories on +## binfmt_misc filesystems. +## </summary> +## <param name="domain"> +## <summary> +## Domain allowed access. +## </summary> +## </param> +# +interface(`fs_check_write_binfmt_misc_dirs',` + gen_require(` + type binfmt_misc_fs_t; + ') + + allow $1 binfmt_misc_fs_t:dir { getattr write }; +') + +######################################## +## <summary> ## Register an interpreter for new binary ## file types, using the kernel binfmt_misc ## support. diff --git a/policy/modules/system/systemd.te b/policy/modules/system/systemd.te index 6d07466e6..63fef177b 100644 --- a/policy/modules/system/systemd.te +++ b/policy/modules/system/systemd.te @@ -401,6 +401,7 @@ fs_search_cgroup_dirs(systemd_backlight_t) # kernel_read_kernel_sysctls(systemd_binfmt_t) +kernel_getattr_proc(systemd_binfmt_t) systemd_log_parse_environment(systemd_binfmt_t) @@ -409,6 +410,11 @@ files_read_etc_files(systemd_binfmt_t) fs_register_binary_executable_type(systemd_binfmt_t) +fs_getattr_binfmt_misc_fs(systemd_binfmt_t) +fs_check_write_binfmt_misc_dirs(systemd_binfmt_t) + +fs_getattr_cgroup(systemd_binfmt_t) +fs_search_cgroup_dirs(systemd_binfmt_t) ###################################### # |