linux/kernel/module
Petr Pavlu a6323bd4e6
module: Prevent silent truncation of module name in delete_module(2)
Passing a module name longer than MODULE_NAME_LEN to the delete_module
syscall results in its silent truncation. This really isn't much of
a problem in practice, but it could theoretically lead to the removal of an
incorrect module. It is more sensible to return ENAMETOOLONG or ENOENT in
such a case.

Update the syscall to return ENOENT, as documented in the delete_module(2)
man page to mean "No module by that name exists." This is appropriate
because a module with a name longer than MODULE_NAME_LEN cannot be loaded
in the first place.

Signed-off-by: Petr Pavlu <petr.pavlu@suse.com>
Reviewed-by: Daniel Gomez <da.gomez@samsung.com>
Link: https://lore.kernel.org/r/20250630143535.267745-2-petr.pavlu@suse.com
Signed-off-by: Daniel Gomez <da.gomez@samsung.com>
2025-07-31 13:57:21 +02:00
..
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: move 'struct module_use' to internal.h 2025-07-31 13:40:46 +02:00
kallsyms.c module: Use RCU in all users of __module_address(). 2025-03-10 11:54:45 +01:00
Kconfig kbuild: Require pahole <v1.28 or >v1.29 with GENDWARFKSYMS on X86 2025-05-12 15:03:16 +09:00
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: Prevent silent truncation of module name in delete_module(2) 2025-07-31 13:57:21 +02:00
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
stats.c module: Fix comment typo 2023-11-01 13:07:08 -07:00
strict_rwx.c module: Make .static_call_sites read-only after init 2025-05-18 13:56:22 +02:00
sysfs.c sysfs: treewide: switch back to attribute_group::bin_attrs 2025-06-17 10:44:15 +02:00
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