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authorXiaoming Ni <nixiaoming@huawei.com>2022-01-21 22:13:38 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2022-01-22 08:33:36 +0200
commitf0bc21b268c1464603192a00851cdbbf7c2cdc36 (patch)
treee42d5a48b8eaef0c33911d831f344e9f07b1c5a5 /fs/exec.c
parentfdcd4073fccc6f989308be3f1d61d8a68cd990ce (diff)
downloadlinux-f0bc21b268c1464603192a00851cdbbf7c2cdc36.tar.bz2
fs/coredump: move coredump sysctls into its own file
This moves the fs/coredump.c respective sysctls to its own file. Link: https://lkml.kernel.org/r/20211129211943.640266-6-mcgrof@kernel.org Signed-off-by: Xiaoming Ni <nixiaoming@huawei.com> Signed-off-by: Luis Chamberlain <mcgrof@kernel.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Cc: Antti Palosaari <crope@iki.fi> Cc: Christian Brauner <christian.brauner@ubuntu.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Biederman <ebiederm@xmission.com> Cc: Eric Biggers <ebiggers@google.com> Cc: Iurii Zaikin <yzaikin@google.com> Cc: Kees Cook <keescook@chromium.org> Cc: Lukas Middendorf <kernel@tuxforce.de> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: "Naveen N. Rao" <naveen.n.rao@linux.ibm.com> Cc: Stephen Kitt <steve@sk2.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/exec.c')
-rw-r--r--fs/exec.c55
1 files changed, 0 insertions, 55 deletions
diff --git a/fs/exec.c b/fs/exec.c
index 310750340e4a..79f2c9483302 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -2103,20 +2103,6 @@ COMPAT_SYSCALL_DEFINE5(execveat, int, fd,
#ifdef CONFIG_SYSCTL
-static void validate_coredump_safety(void)
-{
-#ifdef CONFIG_COREDUMP
- if (suid_dumpable == SUID_DUMP_ROOT &&
- core_pattern[0] != '/' && core_pattern[0] != '|') {
- pr_warn(
-"Unsafe core_pattern used with fs.suid_dumpable=2.\n"
-"Pipe handler or fully qualified core dump path required.\n"
-"Set kernel.core_pattern before fs.suid_dumpable.\n"
- );
- }
-#endif
-}
-
static int proc_dointvec_minmax_coredump(struct ctl_table *table, int write,
void *buffer, size_t *lenp, loff_t *ppos)
{
@@ -2140,50 +2126,9 @@ static struct ctl_table fs_exec_sysctls[] = {
{ }
};
-#ifdef CONFIG_COREDUMP
-
-static int proc_dostring_coredump(struct ctl_table *table, int write,
- void *buffer, size_t *lenp, loff_t *ppos)
-{
- int error = proc_dostring(table, write, buffer, lenp, ppos);
-
- if (!error)
- validate_coredump_safety();
- return error;
-}
-
-static struct ctl_table kernel_exec_sysctls[] = {
- {
- .procname = "core_uses_pid",
- .data = &core_uses_pid,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = proc_dointvec,
- },
- {
- .procname = "core_pattern",
- .data = core_pattern,
- .maxlen = CORENAME_MAX_SIZE,
- .mode = 0644,
- .proc_handler = proc_dostring_coredump,
- },
- {
- .procname = "core_pipe_limit",
- .data = &core_pipe_limit,
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec,
- },
- { }
-};
-#endif
-
static int __init init_fs_exec_sysctls(void)
{
register_sysctl_init("fs", fs_exec_sysctls);
-#ifdef CONFIG_COREDUMP
- register_sysctl_init("kernel", kernel_exec_sysctls);
-#endif
return 0;
}