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* [Bug libc/26637] New: semctl SEM_STAT_ANY fails to pass the buffer specified by the caller to the kernel
@ 2020-09-20 0:41 ldv at sourceware dot org
2020-09-20 20:22 ` [Bug libc/26637] " adhemerval.zanella at linaro dot org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: ldv at sourceware dot org @ 2020-09-20 0:41 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=26637
Bug ID: 26637
Summary: semctl SEM_STAT_ANY fails to pass the buffer specified
by the caller to the kernel
Product: glibc
Version: 2.32
Status: NEW
Severity: normal
Priority: P2
Component: libc
Assignee: unassigned at sourceware dot org
Reporter: ldv at sourceware dot org
CC: drepper.fsp at gmail dot com
Target Milestone: ---
Flags: security-
The kernel receives garbage instead of union semun.buf address specified by the
caller.
$ git --no-pager grep -wc SEM_STAT_ANY sysdeps/unix/sysv/linux/semctl.c
sysdeps/unix/sysv/linux/semctl.c:2
$ git --no-pager grep -wc SEM_STAT sysdeps/unix/sysv/linux/semctl.c
sysdeps/unix/sysv/linux/semctl.c:8
A tentative fix:
diff --git a/sysdeps/unix/sysv/linux/semctl.c
b/sysdeps/unix/sysv/linux/semctl.c
index f131a26fc7..1cdabde8f2 100644
--- a/sysdeps/unix/sysv/linux/semctl.c
+++ b/sysdeps/unix/sysv/linux/semctl.c
@@ -102,6 +102,7 @@ semun64_to_ksemun64 (int cmd, union semun64 semun64,
r.array = semun64.array;
break;
case SEM_STAT:
+ case SEM_STAT_ANY:
case IPC_STAT:
case IPC_SET:
r.buf = buf;
@@ -150,6 +151,7 @@ __semctl64 (int semid, int semnum, int cmd, ...)
case IPC_STAT: /* arg.buf */
case IPC_SET:
case SEM_STAT:
+ case SEM_STAT_ANY:
case IPC_INFO: /* arg.__buf */
case SEM_INFO:
va_start (ap, cmd);
@@ -238,6 +240,7 @@ semun_to_semun64 (int cmd, union semun semun, struct
__semid64_ds *semid64)
r.array = semun.array;
break;
case SEM_STAT:
+ case SEM_STAT_ANY:
case IPC_STAT:
case IPC_SET:
r.buf = semid64;
@@ -267,6 +270,7 @@ __semctl (int semid, int semnum, int cmd, ...)
case IPC_STAT: /* arg.buf */
case IPC_SET:
case SEM_STAT:
+ case SEM_STAT_ANY:
case IPC_INFO: /* arg.__buf */
case SEM_INFO:
va_start (ap, cmd);
@@ -321,6 +325,7 @@ __semctl_mode16 (int semid, int semnum, int cmd, ...)
case IPC_STAT: /* arg.buf */
case IPC_SET:
case SEM_STAT:
+ case SEM_STAT_ANY:
case IPC_INFO: /* arg.__buf */
case SEM_INFO:
va_start (ap, cmd);
@@ -354,6 +359,7 @@ __old_semctl (int semid, int semnum, int cmd, ...)
case IPC_STAT: /* arg.buf */
case IPC_SET:
case SEM_STAT:
+ case SEM_STAT_ANY:
case IPC_INFO: /* arg.__buf */
case SEM_INFO:
va_start (ap, cmd);
--
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^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug libc/26637] semctl SEM_STAT_ANY fails to pass the buffer specified by the caller to the kernel
2020-09-20 0:41 [Bug libc/26637] New: semctl SEM_STAT_ANY fails to pass the buffer specified by the caller to the kernel ldv at sourceware dot org
@ 2020-09-20 20:22 ` adhemerval.zanella at linaro dot org
2020-10-02 19:41 ` adhemerval.zanella at linaro dot org
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: adhemerval.zanella at linaro dot org @ 2020-09-20 20:22 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=26637
Adhemerval Zanella <adhemerval.zanella at linaro dot org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Assignee|unassigned at sourceware dot org |adhemerval.zanella at linaro dot o
| |rg
CC| |adhemerval.zanella at linaro dot o
| |rg
--
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^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug libc/26637] semctl SEM_STAT_ANY fails to pass the buffer specified by the caller to the kernel
2020-09-20 0:41 [Bug libc/26637] New: semctl SEM_STAT_ANY fails to pass the buffer specified by the caller to the kernel ldv at sourceware dot org
2020-09-20 20:22 ` [Bug libc/26637] " adhemerval.zanella at linaro dot org
@ 2020-10-02 19:41 ` adhemerval.zanella at linaro dot org
2021-01-05 16:52 ` fweimer at redhat dot com
2022-11-10 10:37 ` fweimer at redhat dot com
3 siblings, 0 replies; 5+ messages in thread
From: adhemerval.zanella at linaro dot org @ 2020-10-02 19:41 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=26637
Adhemerval Zanella <adhemerval.zanella at linaro dot org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
Target Milestone|--- |2.33
--- Comment #1 from Adhemerval Zanella <adhemerval.zanella at linaro dot org> ---
Fixed on 2.33 (574500a108be1d2a6a0dc97a075c9e0a98371aba)
--
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* [Bug libc/26637] semctl SEM_STAT_ANY fails to pass the buffer specified by the caller to the kernel
2020-09-20 0:41 [Bug libc/26637] New: semctl SEM_STAT_ANY fails to pass the buffer specified by the caller to the kernel ldv at sourceware dot org
2020-09-20 20:22 ` [Bug libc/26637] " adhemerval.zanella at linaro dot org
2020-10-02 19:41 ` adhemerval.zanella at linaro dot org
@ 2021-01-05 16:52 ` fweimer at redhat dot com
2022-11-10 10:37 ` fweimer at redhat dot com
3 siblings, 0 replies; 5+ messages in thread
From: fweimer at redhat dot com @ 2021-01-05 16:52 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=26637
Florian Weimer <fweimer at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |fweimer at redhat dot com
See Also| |https://bugzilla.redhat.com
| |/show_bug.cgi?id=1912670
--
You are receiving this mail because:
You are on the CC list for the bug.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug libc/26637] semctl SEM_STAT_ANY fails to pass the buffer specified by the caller to the kernel
2020-09-20 0:41 [Bug libc/26637] New: semctl SEM_STAT_ANY fails to pass the buffer specified by the caller to the kernel ldv at sourceware dot org
` (2 preceding siblings ...)
2021-01-05 16:52 ` fweimer at redhat dot com
@ 2022-11-10 10:37 ` fweimer at redhat dot com
3 siblings, 0 replies; 5+ messages in thread
From: fweimer at redhat dot com @ 2022-11-10 10:37 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=26637
Florian Weimer <fweimer at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
See Also| |https://sourceware.org/bugz
| |illa/show_bug.cgi?id=29771
--
You are receiving this mail because:
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^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2022-11-10 10:37 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-09-20 0:41 [Bug libc/26637] New: semctl SEM_STAT_ANY fails to pass the buffer specified by the caller to the kernel ldv at sourceware dot org
2020-09-20 20:22 ` [Bug libc/26637] " adhemerval.zanella at linaro dot org
2020-10-02 19:41 ` adhemerval.zanella at linaro dot org
2021-01-05 16:52 ` fweimer at redhat dot com
2022-11-10 10:37 ` fweimer at redhat dot com
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