VMware Photon OS: CVE-2024-53097

VMware Photon OS: CVE-2024-53097

Severity

5

CVSS

(AV:L/AC:L/Au:S/C:N/I:N/A:C)

Published

11/25/2024

Created

01/21/2025

Added

01/20/2025

Modified

02/04/2025

Description

In the Linux kernel, the following vulnerability has been resolved: mm: krealloc: Fix MTE false alarm in __do_krealloc This patch addresses an issue introduced by commit 1a83a716ec233 ("mm: krealloc: consider spare memory for __GFP_ZERO") which causes MTE (Memory Tagging Extension) to falsely report a slab-out-of-bounds error. The problem occurs when zeroing out spare memory in __do_krealloc. The original code only considered software-based KASAN and did not account for MTE. It does not reset the KASAN tag before calling memset, leading to a mismatch between the pointer tag and the memory tag, resulting in a false positive. Example of the error: ================================================================== swapper/0: BUG: KASAN: slab-out-of-bounds in __memset+0x84/0x188 swapper/0: Write at addr f4ffff8005f0fdf0 by task swapper/0/1 swapper/0: Pointer tag: [f4], memory tag: [fe] swapper/0: swapper/0: CPU: 4 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.12. swapper/0: Hardware name: MT6991(ENG) (DT) swapper/0: Call trace: swapper/0:dump_backtrace+0xfc/0x17c swapper/0:show_stack+0x18/0x28 swapper/0:dump_stack_lvl+0x40/0xa0 swapper/0:print_report+0x1b8/0x71c swapper/0:kasan_report+0xec/0x14c swapper/0:__do_kernel_fault+0x60/0x29c swapper/0:do_bad_area+0x30/0xdc swapper/0:do_tag_check_fault+0x20/0x34 swapper/0:do_mem_abort+0x58/0x104 swapper/0:el1_abort+0x3c/0x5c swapper/0:el1h_64_sync_handler+0x80/0xcc swapper/0:el1h_64_sync+0x68/0x6c swapper/0:__memset+0x84/0x188 swapper/0:btf_populate_kfunc_set+0x280/0x3d8 swapper/0:__register_btf_kfunc_id_set+0x43c/0x468 swapper/0:register_btf_kfunc_id_set+0x48/0x60 swapper/0:register_nf_nat_bpf+0x1c/0x40 swapper/0:nf_nat_init+0xc0/0x128 swapper/0:do_one_initcall+0x184/0x464 swapper/0:do_initcall_level+0xdc/0x1b0 swapper/0:do_initcalls+0x70/0xc0 swapper/0:do_basic_setup+0x1c/0x28 swapper/0:kernel_init_freeable+0x144/0x1b8 swapper/0:kernel_init+0x20/0x1a8 swapper/0:ret_from_fork+0x10/0x20 ==================================================================

Solution(s)

• vmware-photon_os_update_tdnf

References

• https://attackerkb.com/topics/cve-2024-53097
• CVE - 2024-53097