💣Exploit CVE-2024-56741 - Linux Kernel AppArmor Memory Leak

[Maksim]

CVE ID : CVE-2024-56741
Published : Dec. 29, 2024, 12:15 p.m. | 38 minutes ago
Description : In the Linux kernel, the following vulnerability has been resolved: apparmor: test: Fix memory leak for aa_unpack_strdup() The string allocated by kmemdup() in aa_unpack_strdup() is not freed and cause following memory leaks, free them to fix it. unreferenced object 0xffffff80c6af8a50 (size 8): comm "kunit_try_catch", pid 225, jiffies 4294894407 hex dump (first 8 bytes): 74 65 73 74 69 6e 67 00 testing. backtrace (crc 5eab668b): [] kmemleak_alloc+0x34/0x40 [] __kmalloc_node_track_caller_noprof+0x300/0x3e0 [] kmemdup_noprof+0x34/0x60 [] aa_unpack_strdup+0xd0/0x18c [] policy_unpack_test_unpack_strdup_with_null_name+0xf8/0x3ec [] kunit_try_run_case+0x13c/0x3ac [] kunit_generic_run_threadfn_adapter+0x80/0xec [] kthread+0x2e8/0x374 [] ret_from_fork+0x10/0x20 unreferenced object 0xffffff80c2a29090 (size 8): comm "kunit_try_catch", pid 227, jiffies 4294894409 hex dump (first 8 bytes): 74 65 73 74 69 6e 67 00 testing. backtrace (crc 5eab668b): [] kmemleak_alloc+0x34/0x40 [] __kmalloc_node_track_caller_noprof+0x300/0x3e0 [] kmemdup_noprof+0x34/0x60 [] aa_unpack_strdup+0xd0/0x18c [] policy_unpack_test_unpack_strdup_with_name+0xd0/0x3c4 [] kunit_try_run_case+0x13c/0x3ac [] kunit_generic_run_threadfn_adapter+0x80/0xec [] kthread+0x2e8/0x374 [] ret_from_fork+0x10/0x20
Severity: 0.0 | NA
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