sys-apps/util-linux: Revbump to add various upstream fixes

* Erase names in agetty by pressing CTRL-C (#804972)
* Fixed user mount of davfs2 filesystems (#805218)
* Fixed lscpu segfault on riscv plattform with upstream patch (#802606)
+ Fixed potential buffer overflow in ipcutils (#806070) (CVE-2021-37600)

Bug: https://bugs.gentoo.org/806070
Closes: https://bugs.gentoo.org/804972
Closes: https://bugs.gentoo.org/805218
Closes: https://bugs.gentoo.org/802606
Signed-off-by: Lars Wendler <[email protected]>

sys-apps/util-linux/files/util-linux-2.37.1-agetty_ctrl-c_erase.patch

@@ -0,0 +1,50 @@
+From 6eb1c01e9dd25a73100f06db37190c63fd57d4d9 Mon Sep 17 00:00:00 2001
+From: Karel Zak <[email protected]>
+Date: Fri, 30 Jul 2021 11:50:46 +0200
+Subject: [PATCH] agetty: use CTRL+C to erase username
+
+aggety(8) from the beginning ignores ^C (the small exception was
+between 2.32 and 2.34 when this char has been misinterpreted).
+
+This patch forces agetty to interpret ^C like ^U, it means to
+erase the user's input and wait for a completely new username.
+The small difference is that for ^C it does not set 'kill character'.
+
+This change does not affect serial lines where ^C is still ignored like
+in previous decades. I'd like to avoid any regression as I have
+no clue if any serial lines do not send this control char in some
+context ...
+
+Fixes: https://github.com/karelzak/util-linux/issues/1399
+References: https://github.com/karelzak/util-linux/issues/1046
+Signed-off-by: Karel Zak <[email protected]>
+---
+ term-utils/agetty.c | 8 +++++---
+ 1 file changed, 5 insertions(+), 3 deletions(-)
+
+diff --git a/term-utils/agetty.c b/term-utils/agetty.c
+index 3b3d5101a..d072d64d3 100644
+--- a/term-utils/agetty.c
++++ b/term-utils/agetty.c
+@@ -2267,6 +2267,11 @@ static char *get_logname(struct issue *ie, struct options *op, struct termios *t
+ break;
+ case CTL('U'):
+ cp->kill = ascval; /* set kill character */
++ /* fallthrough */
++ case CTL('C'):
++ if (key == CTL('C') && !(op->flags & F_VCONSOLE))
++ /* Ignore CTRL+C on serial line */
++ break;
+ while (bp > logname) {
+ if ((tp->c_lflag & ECHO) == 0)
+ write_all(1, erase[cp->parity], 3);
+@@ -2275,9 +2280,6 @@ static char *get_logname(struct issue *ie, struct options *op, struct termios *t
+ break;
+ case CTL('D'):
+ exit(EXIT_SUCCESS);
+- case CTL('C'):
+- /* Ignore */
+- break;
+ default:
+ if ((size_t)(bp - logname) >= sizeof(logname) - 1)
+ log_err(_("%s: input overrun"), op->tty);

sys-apps/util-linux/files/util-linux-2.37.1-ipcutils_calloc_check.patch

@@ -0,0 +1,25 @@
+From 86d5de52d43501711586054e7b601fbc57403085 Mon Sep 17 00:00:00 2001
+From: Karel Zak <[email protected]>
+Date: Tue, 27 Jul 2021 11:58:31 +0200
+Subject: [PATCH] sys-utils/ipcutils: be careful when call calloc() for uint64
+ nmembs
+
+Fix: https://github.com/karelzak/util-linux/issues/1395
+Signed-off-by: Karel Zak <[email protected]>
+---
+ sys-utils/ipcutils.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/sys-utils/ipcutils.c b/sys-utils/ipcutils.c
+index e784c4dcb9..18868cfd38 100644
+--- a/sys-utils/ipcutils.c
++++ b/sys-utils/ipcutils.c
+@@ -218,7 +218,7 @@ static void get_sem_elements(struct sem_data *p)
+ {
+ size_t i;
+
+- if (!p || !p->sem_nsems || p->sem_perm.id < 0)
++ if (!p || !p->sem_nsems || p->sem_nsems > SIZE_MAX || p->sem_perm.id < 0)
+ return;
+
+ p->elements = xcalloc(p->sem_nsems, sizeof(struct sem_elem));

sys-apps/util-linux/files/util-linux-2.37.1-libmount_setgroups_fix.patch

@@ -0,0 +1,38 @@
+From 420e914c4cc4c2ba34fd75790ea194d7f4a47d2c Mon Sep 17 00:00:00 2001
+From: Karel Zak <[email protected]>
+Date: Thu, 29 Jul 2021 11:50:48 +0200
+Subject: [PATCH] libmount: fix setgroups() use
+
+* keep process in single supplementary group, which is the real group ID for the process
+
+* make sure we have rights to call setgroups(), requires group permissions
+
+Fixes: https://github.com/karelzak/util-linux/issues/1398
+Signed-off-by: Karel Zak <[email protected]>
+---
+ include/c.h | 6 ++++--
+ 1 file changed, 4 insertions(+), 2 deletions(-)
+
+diff --git a/include/c.h b/include/c.h
+index c1e4c5ffc..a4504e3ba 100644
+--- a/include/c.h
++++ b/include/c.h
+@@ -340,14 +340,16 @@ static inline size_t get_hostname_max(void)
+
+ static inline int drop_permissions(void)
+ {
++ gid_t newgid = getgid();
++
+ errno = 0;
+
+ /* drop supplementary groups */
+- if (setgroups(0, NULL) != 0)
++ if (geteuid() == 0 && setgroups(1, &newgid) != 0)
+ goto fail;
+
+ /* drop GID */
+- if (setgid(getgid()) < 0)
++ if (setgid(newgid) < 0)
+ goto fail;
+
+ /* drop UID */

sys-apps/util-linux/files/util-linux-2.37.1-lscpu_NULL_dereference_fix.patch

@@ -0,0 +1,50 @@
+From 0d7cef3ddbd2aacbea8c11e8524a3de68dfb8ff6 Mon Sep 17 00:00:00 2001
+From: Karel Zak <[email protected]>
+Date: Fri, 30 Jul 2021 14:35:25 +0200
+Subject: [PATCH] lscpu: fix NULL dereference
+
+Fixes: https://github.com/karelzak/util-linux/issues/1401
+Signed-off-by: Karel Zak <[email protected]>
+---
+ sys-utils/lscpu-cputype.c | 2 +-
+ sys-utils/lscpu.c | 6 +++---
+ 2 files changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/sys-utils/lscpu-cputype.c b/sys-utils/lscpu-cputype.c
+index 795a4acf5..be16199e0 100644
+--- a/sys-utils/lscpu-cputype.c
++++ b/sys-utils/lscpu-cputype.c
+@@ -569,7 +569,7 @@ int lscpu_read_cpuinfo(struct lscpu_cxt *cxt)
+ /* Set the default type to CPUs which are missing (or not parsed)
+ * in cpuinfo */
+ ct = lscpu_cputype_get_default(cxt);
+- for (i = 0; i < cxt->npossibles; i++) {
++ for (i = 0; ct && i < cxt->npossibles; i++) {
+ struct lscpu_cpu *cpu = cxt->cpus[i];
+
+ if (cpu && !cpu->type)
+diff --git a/sys-utils/lscpu.c b/sys-utils/lscpu.c
+index 827e84a6d..e11b2f42f 100644
+--- a/sys-utils/lscpu.c
++++ b/sys-utils/lscpu.c
+@@ -991,7 +991,7 @@ static void print_summary(struct lscpu_cxt *cxt)
+ *(p - 2) = '\0';
+ add_summary_s(tb, sec, _("CPU op-mode(s):"), buf);
+ }
+- if (ct->addrsz)
++ if (ct && ct->addrsz)
+ add_summary_s(tb, sec, _("Address sizes:"), ct->addrsz);
+ #if !defined(WORDS_BIGENDIAN)
+ add_summary_s(tb, sec, _("Byte Order:"), "Little Endian");
+@@ -1033,9 +1033,9 @@ static void print_summary(struct lscpu_cxt *cxt)
+ sec = NULL;
+
+ /* Section: cpu type description */
+- if (ct->vendor)
++ if (ct && ct->vendor)
+ sec = add_summary_s(tb, NULL, _("Vendor ID:"), ct->vendor);
+- if (ct->bios_vendor)
++ if (ct && ct->bios_vendor)
+ add_summary_s(tb, sec, _("BIOS Vendor ID:"), ct->bios_vendor);
+
+ for (i = 0; i < cxt->ncputypes; i++)