Moderate: glibc security update (Oracle Linux 8)

[2.28-251.0.4.37]
- Forward port of Oracle patches
Reviewed-by: David Faust <david.faust@oracle.com>
Oracle history:
May-7-2026 Cupertino Miranda <cupertino.miranda@oracle.com> - 2.28-251.0.4.34
- Forward port of Oracle patches
Reviewed-by: Jose E. Marchesi <jose.marchesi@oracle.com>
March-18-2026 Cupertino Miranda <cupertino.miranda@oracle.com> - 2.28-251.0.4.31
- Forward port of Oracle patches
Reviewed-by: Jose E. Marchesi <jose.marchesi@oracle.com>
February-24-2026 Cupertino Miranda <cupertino.miranda@oracle.com> - 2.28-251.0.4.27
- Fixed orabug 38834066 stpcpy MTE support
Reviewed-by: Jose E. Marchesi <jose.marchesi@oracle.com>
December-8-2025 Cupertino Miranda <cupertino.miranda@oracle.com> - 2.28-251.0.3.27
- Forward port of Oracle patches
Reviewed-by: David Faust <david.faust@oracle.com>
August-5-2025 Cupertino Miranda <cupertino.miranda@oracle.com> - 2.28-251.0.3.25
- Forward port of Oracle patches
Reviewed-by: Jose E. Marchesi <jose.marchesi@oracle.com>
June-9-2025 Cupertino Miranda <cupertino.miranda@oracle.com> - 2.28-251.0.3.22
- Forward port of Oracle patches
Reviewed-by: David Faust <david.faust@oracle.com>
April-14-2025 Cupertino Miranda <cupertino.miranda@oracle.com> - 2.28-251.0.3.16
- Forward port of Oracle patches
Reviewed-by: Elena Zannoni <elena.zannoni@oracle.com>
March-26-2025 Cupertino Miranda <cupertino.miranda@oracle.com> - 2.28-251.0.3.14
- OraBug: 36625686 Add MTE support on string functions
Reviewed-by: Jose E. Marchesi <jose.marchesi@oracle.com>
March-17-2025 Cupertino Miranda <cupertino.miranda@oracle.com> - 2.28-251.0.2.14
- Forward port of Oracle patches
Reviewed-by: David Faust <david.faust@oracle.com>
February-19-2025 Cupertino Miranda <cupertino.miranda@oracle.com> - 2.28-251.0.2.13
- Forward port of Oracle patches
Reviewed-by: Jose E. Marchesi <jose.marchesi@oracle.com>
January-28-2025 Cupertino Miranda <cupertino.miranda@oracle.com> - 2.28-251.0.2.11
- Forward port of Oracle patches
Reviewed-by: Jose E. Marchesi <jose.marchesi@oracle.com>
September-24-2024 Cupertino Miranda <cupertino.miranda@oracle.com> - 2.28-251.0.2.5
- Forward port of Oracle patches over 2.28-251.5
Reviewed-by: Jose E. Marchesi <jose.marchesi@oracle.com>
August-26-2024 Jose E. Marchesi <jose.marchesi@oracle.com> - 2.28-251.0.2.4
- Forward port of Oracle patches over 2.28-251.4
Reviewed-by: David Faust <david.faust@oracle.com>
May-24-2024 Cupertino Miranda <cupertino.miranda@oracle.com> - 2.28-251.0.2.2
- Forward port of Oracle patches over 2.28-251.2
Reviewed-by: Jose E. Marchesi <jose.marchesi@oracle.com>
May-23-2024 Cupertino Miranda <cupertino.miranda@oracle.com> - 2.28-251.0.2.1
- Forward port of Oracle patches over 2.28-251.1
Reviewed-by: Jose E. Marchesi <jose.marchesi@oracle.com>
May-22-2024 Cupertino Miranda <cupertino.miranda@oracle.com> - 2.28-251.0.2
- Forward port of Oracle patches for ol8-u10
Reviewed-by: Jose E. Marchesi <jose.marchesi@oracle.com>
March-28-2024 Cupertino Miranda <cupertino.miranda@oracle.com> - 2.28-251.0.1
- Forward port of Oracle patches for ol8-u10-beta
Reviewed-by: Jose E. Marchesi <jose.marchesi@oracle.com>
March-5-2024 Cupertino Miranda <cupertino.miranda@oracle.com> - 2.28-236.0.1.12
- Forward port of Oracle patches.
Reviewed-by: Jose E. Marchesi <jose.marchesi@oracle.com>
November-14-2023 Cupertino Miranda <cupertino.miranda@oracle.com> - 2.28-236.0.1.7
- Forward port of Oracle patches.
Reviewed-by: Jose E. Marchesi <jose.marchesi@oracle.com>
October-4-2023 Cupertino Miranda <cupertino.miranda@oracle.com> - 2.28-236.0.1.6
- Forward port of Oracle patches.
Reviewed-by: Jose E. Marchesi <jose.marchesi@oracle.com>
April-21-2023 Cupertino Miranda <cupertino.miranda@oracle.com> - 2.28-225.0.3
- OraBug 35317410 Glibc tunable to disable huge pages on pthread_create stacks
- Created tunable glibc.pthread.stack_hugetlb to control when hugepages
can be used for stack allocation.
- In case THP are enabled and glibc.pthread.stack_hugetlb is set to
0, glibc will madvise the kernel not to use allow hugepages for stack
allocations.
Reviewed-by: Jose E. Marchesi <jose.marchesi@oracle.com>
April-11-2023 Cupertino Miranda <cupertino.miranda@oracle.com> - 2.28-225.0.2
- OraBug: 35268809 Fixed initialization of VDSO for tcache_key_initialize
Reviewed-by: Jose E. Marchesi <jose.marchesi@oracle.com>
March-28-2023 Cupertino Miranda <cupertino.miranda@oracle.com> - 2.28-225.0.1
- Merge of Oracle patches for ol8u8 beta
Reviewed-by: Jose E. Marchesi <jose.marchesi@oracle.com>
September-28-2022 Patrick McGehearty <patrick.mcgehearty@oracle.com> - 2.28-211.0.1
- Merge of Oracle patches for ol8u7 beta
Reviewed-by: Jose E. Marchesi <jose.marchesi@oracle.com>
August-8-2022 Patrick McGehearty <patrick.mcgehearty@oracle.com> - 2.28-189.5.0.2
- Enable VDSO on x86_64, aarch64, i386, arm, and mips statically linked programs.
- These changes enable reading the realtime clock without a kernel syscall.
OraBug: 30478315
Reviewed-by: Jose E. Marchesi <jose.marchesi@oracle.com>
May-2-2022 Patrick McGehearty <patrick.mcgehearty@oracle.com> - 2.28-199.0.1
- Merge of patches from c8s 199 with ol8u6 beta
Reviewed-by: Jose E. Marchesi <jose.marchesi@oracle.com>
- Update siginfo constants from linux kernel (OraBug: 33734528)
- Remove limit on MALLOC_MMAP_THRESHOLD tunable (Orabug: 29630826)
- Provide glibc.pthread.mutex_spin_count tunable for pthread adaptive
- spin mutex (Orabug: 27982358)
Reviewed-by: Qing Zhao <qing.zhao@oracle.com>
- add Ampere emag to tunable cpu list (Patrick McGehearty)
- add optimized memset for emag
- add an ASIMD variant of strlen for falkor
Orabug: 2700101.
- Modify glibc-ora28849085.patch so it works with RHCK kernels. (Orabug: 28849085)
- Make _IO_funlockfile match __funlockfile and _IO_flockfile match __flockfile
Both should test
if (stream->_flags & _IO_USER_LOCK) == 0)
_IO_lock_lock (*stream->_lock);
OraBug: 28481550.
Reviewed-by: Qing Zhao <qing.zhao@ora