cbcvebase.
CVE-2024-53097
published 2024-11-25

CVE-2024-53097: 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…

PriorityP421medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.23%
13.5th percentile
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

Affected

29 ranges· showing 25
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.119-1 (bookworm)linux 6.1.119-1 (bookworm)
debianlinux-6.1< linux 6.1.119-1 (bookworm)linux 6.1.119-1 (bookworm)
linuxlinux
linuxlinux>= 1a83a716ec233990e1fd5b6fbb1200ade63bf450 < 704573851b51808b45dae2d62059d1d8189138a2704573851b51808b45dae2d62059d1d8189138a2
linuxlinux>= 3e9a65a38706866bf93e19f5b4936465188add10 < 3dfb40da84f26dd35dd9bbaf626a2424565b84063dfb40da84f26dd35dd9bbaf626a2424565b8406
linuxlinux>= 44f79667fefd52945a44d2a57a2cd3c554d7f4e0 < d43f1430d47c22a0727c05b6f156ed25fecdfeb4d43f1430d47c22a0727c05b6f156ed25fecdfeb4
linuxlinux>= 5.10.227 < 5.10.2305.10.230
linuxlinux>= 5.15.168 < 5.15.1735.15.173
linuxlinux>= 6.1.113 < 6.1.1186.1.118
linuxlinux>= 6.10.14 < 6.116.11
linuxlinux>= 6.11.3 < 6.11.96.11.9
linuxlinux>= 6.6.55 < 6.6.626.6.62
linuxlinux>= a543785856249a5ba8c20468098601c0c33b1224 < d02492863023431c31f85d570f718433c22b9311d02492863023431c31f85d570f718433c22b9311
linuxlinux>= c383263ee82a01a5a9bc1a466025ccde39a38cae < 8ebee7565effdeae6085458f8f8463363120a8718ebee7565effdeae6085458f8f8463363120a871
linuxlinux>= e3a9fc1520a6606c6121aca8d6679c6b93de7fd8 < 71548fada7ee0eb50cc6ccda82dff010c745f92c71548fada7ee0eb50cc6ccda82dff010c745f92c
linuxlinux>= f8767d10bcbc2529540eb906906c0058e15cd918 < 486aeb5f1855c75dd810c25036134961bd2a6722486aeb5f1855c75dd810c25036134961bd2a6722
linuxlinux_kernel
linuxlinux_kernel>= 0 < 5.10.234-15.10.234-1
linuxlinux_kernel>= 0 < 6.1.119-16.1.119-1
linuxlinux_kernel>= 0 < 6.11.9-16.11.9-1
linuxlinux_kernel>= 0 < 6.11.9-16.11.9-1
linuxlinux_kernel>= 0 < 5.15.0-133.1445.15.0-133.144
linuxlinux_kernel>= 5.10.227 < 5.10.2305.10.230
linuxlinux_kernel>= 5.15.168 < 5.15.1735.15.173
linuxlinux_kernel>= 6.1.113 < 6.1.1186.1.118

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv7.8HIGH
vendor_ubuntu7.8HIGH
vendor_debian5.5MEDIUM
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
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