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221fcbf775
linux/kernel/module
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David Wang 221fcbf775 module: release codetag section when module load fails 
When module load fails after memory for codetag section is ready, codetag
section memory will not be properly released.  This causes memory leak,
and if next module load happens to get the same module address, codetag
may pick the uninitialized section when manipulating tags during module
unload, and leads to "unable to handle page fault" BUG.

Link: https://lkml.kernel.org/r/20250519163823.7540-1-00107082@163.com
Fixes: 0db6f8d782 ("alloc_tag: load module tags into separate contiguous memory")
Closes: https://lore.kernel.org/all/20250516131246.6244-1-00107082@163.com/
Signed-off-by: David Wang <00107082@163.com>
Acked-by: Suren Baghdasaryan <surenb@google.com>
Cc: Petr Pavlu <petr.pavlu@suse.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-05-25 00:53:47 -07:00
..
debug_kmemleak.c module: prepare to handle ROX allocations for text 2024-11-07 14:25:15 -08:00
decompress.c module/decompress: use kvmalloc() consistently 2023-11-02 07:35:39 -10:00
dups.c remove pointless includes of <linux/fdtable.h> 2024-10-07 13:34:41 -04:00
internal.h module: Allow __module_address() to be called from RCU section. 2025-03-10 11:54:45 +01:00
kallsyms.c module: Use RCU in all users of __module_address(). 2025-03-10 11:54:45 +01:00
Kconfig Kbuild updates for v6.14 2025-01-31 12:07:07 -08:00
kdb.c module: replace module_layout with module_memory 2023-03-09 12:55:15 -08:00
kmod.c remove pointless includes of <linux/fdtable.h> 2024-10-07 13:34:41 -04:00
livepatch.c livepatch: fix ELF typos 2023-03-09 11:08:24 +01:00
main.c module: release codetag section when module load fails 2025-05-25 00:53:47 -07:00
Makefile module: Fix KCOV-ignored file name 2024-08-08 17:36:35 +02:00
procfs.c module: replace module_layout with module_memory 2023-03-09 12:55:15 -08:00
signing.c module: Fix prefix for module.sig_enforce module param 2022-06-02 12:44:33 -07:00
stats.c module: Fix comment typo 2023-11-01 13:07:08 -07:00
strict_rwx.c module: switch to execmem API for remapping as RW and restoring ROX 2025-02-03 11:46:02 +01:00
sysfs.c Driver core and debugfs updates 2025-01-28 12:25:12 -08:00
tracking.c module: Remove module_assert_mutex_or_preempt() from try_add_tainted_module(). 2025-03-10 11:54:44 +01:00
tree_lookup.c module: Begin to move from RCU-sched to RCU. 2025-03-10 11:54:43 +01:00
version.c module: Use RCU in find_symbol(). 2025-03-10 11:54:44 +01:00