* [Bug dynamic-link/28340] ld.so crashes while loading a DSO with a read-only dynamic section
2021-09-14 17:46 [Bug dynamic-link/28340] New: ld.so crashes while loading a DSO with a read-only dynamic section siddhesh at sourceware dot org
@ 2021-09-14 17:46 ` siddhesh at sourceware dot org
2021-09-22 18:14 ` cvs-commit at gcc dot gnu.org
` (8 subsequent siblings)
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From: siddhesh at sourceware dot org @ 2021-09-14 17:46 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=28340
Siddhesh Poyarekar <siddhesh at sourceware dot org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
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* [Bug dynamic-link/28340] ld.so crashes while loading a DSO with a read-only dynamic section
2021-09-14 17:46 [Bug dynamic-link/28340] New: ld.so crashes while loading a DSO with a read-only dynamic section siddhesh at sourceware dot org
2021-09-14 17:46 ` [Bug dynamic-link/28340] " siddhesh at sourceware dot org
@ 2021-09-22 18:14 ` cvs-commit at gcc dot gnu.org
2021-09-22 18:27 ` hjl.tools at gmail dot com
` (7 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2021-09-22 18:14 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=28340
--- Comment #1 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by H.J. Lu <hjl@sourceware.org>:
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=b413280cfb16834450f66f554bc0d618bb513851
commit b413280cfb16834450f66f554bc0d618bb513851
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Thu Sep 16 08:15:29 2021 -0700
ld.so: Replace DL_RO_DYN_SECTION with dl_relocate_ld [BZ #28340]
We can't relocate entries in dynamic section if it is readonly:
1. Add a l_ld_readonly field to struct link_map to indicate if dynamic
section is readonly and set it based on p_flags of PT_DYNAMIC segment.
2. Replace DL_RO_DYN_SECTION with dl_relocate_ld to decide if dynamic
section should be relocated.
3. Remove DL_RO_DYN_TEMP_CNT.
4. Don't use a static dynamic section to make readonly dynamic section
in vDSO writable.
5. Remove the temp argument from elf_get_dynamic_info.
This fixes BZ #28340.
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
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* [Bug dynamic-link/28340] ld.so crashes while loading a DSO with a read-only dynamic section
2021-09-14 17:46 [Bug dynamic-link/28340] New: ld.so crashes while loading a DSO with a read-only dynamic section siddhesh at sourceware dot org
2021-09-14 17:46 ` [Bug dynamic-link/28340] " siddhesh at sourceware dot org
2021-09-22 18:14 ` cvs-commit at gcc dot gnu.org
@ 2021-09-22 18:27 ` hjl.tools at gmail dot com
2021-09-24 16:27 ` fweimer at redhat dot com
` (6 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: hjl.tools at gmail dot com @ 2021-09-22 18:27 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=28340
H.J. Lu <hjl.tools at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Version|unspecified |2.34
Resolution|--- |FIXED
Target Milestone|--- |2.35
Status|ASSIGNED |RESOLVED
--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> ---
Fixed for 2.35.
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* [Bug dynamic-link/28340] ld.so crashes while loading a DSO with a read-only dynamic section
2021-09-14 17:46 [Bug dynamic-link/28340] New: ld.so crashes while loading a DSO with a read-only dynamic section siddhesh at sourceware dot org
` (2 preceding siblings ...)
2021-09-22 18:27 ` hjl.tools at gmail dot com
@ 2021-09-24 16:27 ` fweimer at redhat dot com
2021-09-25 16:29 ` cvs-commit at gcc dot gnu.org
` (5 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: fweimer at redhat dot com @ 2021-09-24 16:27 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=28340
Florian Weimer <fweimer at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Flags| |security-
CC| |fweimer at redhat dot com
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* [Bug dynamic-link/28340] ld.so crashes while loading a DSO with a read-only dynamic section
2021-09-14 17:46 [Bug dynamic-link/28340] New: ld.so crashes while loading a DSO with a read-only dynamic section siddhesh at sourceware dot org
` (3 preceding siblings ...)
2021-09-24 16:27 ` fweimer at redhat dot com
@ 2021-09-25 16:29 ` cvs-commit at gcc dot gnu.org
2021-10-19 13:41 ` cvs-commit at gcc dot gnu.org
` (4 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2021-09-25 16:29 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=28340
--- Comment #3 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by H.J. Lu <hjl@sourceware.org>:
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=15e6d6785ac2935bb963506b47a37b3d1f728952
commit 15e6d6785ac2935bb963506b47a37b3d1f728952
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Fri Sep 24 08:56:42 2021 -0700
Avoid warning: overriding recipe for .../tst-ro-dynamic-mod.so
Add tst-ro-dynamic-mod to modules-names-nobuild to avoid
../Makerules:767: warning: ignoring old recipe for target
'.../elf/tst-ro-dynamic-mod.so'
This updates BZ #28340 fix.
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* [Bug dynamic-link/28340] ld.so crashes while loading a DSO with a read-only dynamic section
2021-09-14 17:46 [Bug dynamic-link/28340] New: ld.so crashes while loading a DSO with a read-only dynamic section siddhesh at sourceware dot org
` (4 preceding siblings ...)
2021-09-25 16:29 ` cvs-commit at gcc dot gnu.org
@ 2021-10-19 13:41 ` cvs-commit at gcc dot gnu.org
2021-11-03 9:59 ` cvs-commit at gcc dot gnu.org
` (3 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2021-10-19 13:41 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=28340
--- Comment #4 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by H.J. Lu <hjl@sourceware.org>:
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=2ec99d8c42b2ff1a1231e4df462a0910a9b7fdef
commit 2ec99d8c42b2ff1a1231e4df462a0910a9b7fdef
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Thu Sep 23 09:06:49 2021 -0700
ld.so: Initialize bootstrap_map.l_ld_readonly [BZ #28340]
1. Define DL_RO_DYN_SECTION to initalize bootstrap_map.l_ld_readonly
before calling elf_get_dynamic_info to get dynamic info in bootstrap_map,
2. Define a single
static inline bool
dl_relocate_ld (const struct link_map *l)
{
/* Don't relocate dynamic section if it is readonly */
return !(l->l_ld_readonly || DL_RO_DYN_SECTION);
}
This updates BZ #28340 fix.
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* [Bug dynamic-link/28340] ld.so crashes while loading a DSO with a read-only dynamic section
2021-09-14 17:46 [Bug dynamic-link/28340] New: ld.so crashes while loading a DSO with a read-only dynamic section siddhesh at sourceware dot org
` (5 preceding siblings ...)
2021-10-19 13:41 ` cvs-commit at gcc dot gnu.org
@ 2021-11-03 9:59 ` cvs-commit at gcc dot gnu.org
2021-11-03 9:59 ` cvs-commit at gcc dot gnu.org
` (2 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2021-11-03 9:59 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=28340
--- Comment #5 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> ---
The release/2.34/master branch has been updated by Florian Weimer
<fw@sourceware.org>:
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=f42373f911a28d34325a5bfc1ed5a962c89da7eb
commit f42373f911a28d34325a5bfc1ed5a962c89da7eb
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Thu Sep 16 08:15:29 2021 -0700
ld.so: Replace DL_RO_DYN_SECTION with dl_relocate_ld [BZ #28340]
We can't relocate entries in dynamic section if it is readonly:
1. Add a l_ld_readonly field to struct link_map to indicate if dynamic
section is readonly and set it based on p_flags of PT_DYNAMIC segment.
2. Replace DL_RO_DYN_SECTION with dl_relocate_ld to decide if dynamic
section should be relocated.
3. Remove DL_RO_DYN_TEMP_CNT.
4. Don't use a static dynamic section to make readonly dynamic section
in vDSO writable.
5. Remove the temp argument from elf_get_dynamic_info.
This fixes BZ #28340.
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
(cherry picked from commit b413280cfb16834450f66f554bc0d618bb513851)
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* [Bug dynamic-link/28340] ld.so crashes while loading a DSO with a read-only dynamic section
2021-09-14 17:46 [Bug dynamic-link/28340] New: ld.so crashes while loading a DSO with a read-only dynamic section siddhesh at sourceware dot org
` (6 preceding siblings ...)
2021-11-03 9:59 ` cvs-commit at gcc dot gnu.org
@ 2021-11-03 9:59 ` cvs-commit at gcc dot gnu.org
2021-11-03 9:59 ` cvs-commit at gcc dot gnu.org
2021-11-05 0:39 ` sam at gentoo dot org
9 siblings, 0 replies; 11+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2021-11-03 9:59 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=28340
--- Comment #6 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> ---
The release/2.34/master branch has been updated by Florian Weimer
<fw@sourceware.org>:
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=5f36e5c70107ecb59281ef57f9f1c0e37ec3076d
commit 5f36e5c70107ecb59281ef57f9f1c0e37ec3076d
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Thu Sep 23 09:06:49 2021 -0700
ld.so: Initialize bootstrap_map.l_ld_readonly [BZ #28340]
1. Define DL_RO_DYN_SECTION to initalize bootstrap_map.l_ld_readonly
before calling elf_get_dynamic_info to get dynamic info in bootstrap_map,
2. Define a single
static inline bool
dl_relocate_ld (const struct link_map *l)
{
/* Don't relocate dynamic section if it is readonly */
return !(l->l_ld_readonly || DL_RO_DYN_SECTION);
}
This updates BZ #28340 fix.
(cherry picked from commit 2ec99d8c42b2ff1a1231e4df462a0910a9b7fdef)
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* [Bug dynamic-link/28340] ld.so crashes while loading a DSO with a read-only dynamic section
2021-09-14 17:46 [Bug dynamic-link/28340] New: ld.so crashes while loading a DSO with a read-only dynamic section siddhesh at sourceware dot org
` (7 preceding siblings ...)
2021-11-03 9:59 ` cvs-commit at gcc dot gnu.org
@ 2021-11-03 9:59 ` cvs-commit at gcc dot gnu.org
2021-11-05 0:39 ` sam at gentoo dot org
9 siblings, 0 replies; 11+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2021-11-03 9:59 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=28340
--- Comment #7 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> ---
The release/2.34/master branch has been updated by Florian Weimer
<fw@sourceware.org>:
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=6548a9bdba95b3e1fcdbd85445342467e4b0cd4f
commit 6548a9bdba95b3e1fcdbd85445342467e4b0cd4f
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Fri Sep 24 08:56:42 2021 -0700
Avoid warning: overriding recipe for .../tst-ro-dynamic-mod.so
Add tst-ro-dynamic-mod to modules-names-nobuild to avoid
../Makerules:767: warning: ignoring old recipe for target
'.../elf/tst-ro-dynamic-mod.so'
This updates BZ #28340 fix.
(cherry picked from commit 15e6d6785ac2935bb963506b47a37b3d1f728952)
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* [Bug dynamic-link/28340] ld.so crashes while loading a DSO with a read-only dynamic section
2021-09-14 17:46 [Bug dynamic-link/28340] New: ld.so crashes while loading a DSO with a read-only dynamic section siddhesh at sourceware dot org
` (8 preceding siblings ...)
2021-11-03 9:59 ` cvs-commit at gcc dot gnu.org
@ 2021-11-05 0:39 ` sam at gentoo dot org
9 siblings, 0 replies; 11+ messages in thread
From: sam at gentoo dot org @ 2021-11-05 0:39 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=28340
Sam James <sam at gentoo dot org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |sam at gentoo dot org
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