cve-2024-53097
Vulnerability from cvelistv5
Published
2024-11-25 21:21
Modified
2024-12-19 09:39
Severity ?
EPSS score ?
Summary
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
==================================================================
References
Impacted products
Vendor | Product | Version | |||||
---|---|---|---|---|---|---|---|
▼ | Linux | Linux |
Version: c383263ee82a01a5a9bc1a466025ccde39a38cae Version: a543785856249a5ba8c20468098601c0c33b1224 Version: 44f79667fefd52945a44d2a57a2cd3c554d7f4e0 Version: f8767d10bcbc2529540eb906906c0058e15cd918 Version: e3a9fc1520a6606c6121aca8d6679c6b93de7fd8 Version: 3e9a65a38706866bf93e19f5b4936465188add10 Version: 1a83a716ec233990e1fd5b6fbb1200ade63bf450 |
||||
|
{ "containers": { "cna": { "affected": [ { "defaultStatus": "unaffected", "product": "Linux", "programFiles": [ "mm/slab_common.c" ], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [ { "lessThan": "8ebee7565effdeae6085458f8f8463363120a871", "status": "affected", "version": "c383263ee82a01a5a9bc1a466025ccde39a38cae", "versionType": "git" }, { "lessThan": "d02492863023431c31f85d570f718433c22b9311", "status": "affected", "version": "a543785856249a5ba8c20468098601c0c33b1224", "versionType": "git" }, { "lessThan": "d43f1430d47c22a0727c05b6f156ed25fecdfeb4", "status": "affected", "version": "44f79667fefd52945a44d2a57a2cd3c554d7f4e0", "versionType": "git" }, { "lessThan": "486aeb5f1855c75dd810c25036134961bd2a6722", "status": "affected", "version": "f8767d10bcbc2529540eb906906c0058e15cd918", "versionType": "git" }, { "lessThan": "71548fada7ee0eb50cc6ccda82dff010c745f92c", "status": "affected", "version": "e3a9fc1520a6606c6121aca8d6679c6b93de7fd8", "versionType": "git" }, { "lessThan": "3dfb40da84f26dd35dd9bbaf626a2424565b8406", "status": "affected", "version": "3e9a65a38706866bf93e19f5b4936465188add10", "versionType": "git" }, { "lessThan": "704573851b51808b45dae2d62059d1d8189138a2", "status": "affected", "version": "1a83a716ec233990e1fd5b6fbb1200ade63bf450", "versionType": "git" } ] }, { "defaultStatus": "unaffected", "product": "Linux", "programFiles": [ "mm/slab_common.c" ], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [ { "lessThan": "5.10.230", "status": "affected", "version": "5.10.227", "versionType": "semver" }, { "lessThan": "5.15.173", "status": "affected", "version": "5.15.168", "versionType": "semver" }, { "lessThan": "6.1.118", "status": "affected", "version": "6.1.113", "versionType": "semver" }, { "lessThan": "6.6.62", "status": "affected", "version": "6.6.55", "versionType": "semver" }, { "lessThan": "6.11.9", "status": "affected", "version": "6.11.3", "versionType": "semver" } ] } ], "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm: krealloc: Fix MTE false alarm in __do_krealloc\n\nThis patch addresses an issue introduced by commit 1a83a716ec233 (\"mm:\nkrealloc: consider spare memory for __GFP_ZERO\") which causes MTE\n(Memory Tagging Extension) to falsely report a slab-out-of-bounds error.\n\nThe problem occurs when zeroing out spare memory in __do_krealloc. The\noriginal code only considered software-based KASAN and did not account\nfor MTE. It does not reset the KASAN tag before calling memset, leading\nto a mismatch between the pointer tag and the memory tag, resulting\nin a false positive.\n\nExample of the error:\n==================================================================\nswapper/0: BUG: KASAN: slab-out-of-bounds in __memset+0x84/0x188\nswapper/0: Write at addr f4ffff8005f0fdf0 by task swapper/0/1\nswapper/0: Pointer tag: [f4], memory tag: [fe]\nswapper/0:\nswapper/0: CPU: 4 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.12.\nswapper/0: Hardware name: MT6991(ENG) (DT)\nswapper/0: Call trace:\nswapper/0: dump_backtrace+0xfc/0x17c\nswapper/0: show_stack+0x18/0x28\nswapper/0: dump_stack_lvl+0x40/0xa0\nswapper/0: print_report+0x1b8/0x71c\nswapper/0: kasan_report+0xec/0x14c\nswapper/0: __do_kernel_fault+0x60/0x29c\nswapper/0: do_bad_area+0x30/0xdc\nswapper/0: do_tag_check_fault+0x20/0x34\nswapper/0: do_mem_abort+0x58/0x104\nswapper/0: el1_abort+0x3c/0x5c\nswapper/0: el1h_64_sync_handler+0x80/0xcc\nswapper/0: el1h_64_sync+0x68/0x6c\nswapper/0: __memset+0x84/0x188\nswapper/0: btf_populate_kfunc_set+0x280/0x3d8\nswapper/0: __register_btf_kfunc_id_set+0x43c/0x468\nswapper/0: register_btf_kfunc_id_set+0x48/0x60\nswapper/0: register_nf_nat_bpf+0x1c/0x40\nswapper/0: nf_nat_init+0xc0/0x128\nswapper/0: do_one_initcall+0x184/0x464\nswapper/0: do_initcall_level+0xdc/0x1b0\nswapper/0: do_initcalls+0x70/0xc0\nswapper/0: do_basic_setup+0x1c/0x28\nswapper/0: kernel_init_freeable+0x144/0x1b8\nswapper/0: kernel_init+0x20/0x1a8\nswapper/0: ret_from_fork+0x10/0x20\n==================================================================" } ], "providerMetadata": { "dateUpdated": "2024-12-19T09:39:06.026Z", "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux" }, "references": [ { "url": "https://git.kernel.org/stable/c/8ebee7565effdeae6085458f8f8463363120a871" }, { "url": "https://git.kernel.org/stable/c/d02492863023431c31f85d570f718433c22b9311" }, { "url": "https://git.kernel.org/stable/c/d43f1430d47c22a0727c05b6f156ed25fecdfeb4" }, { "url": "https://git.kernel.org/stable/c/486aeb5f1855c75dd810c25036134961bd2a6722" }, { "url": "https://git.kernel.org/stable/c/71548fada7ee0eb50cc6ccda82dff010c745f92c" }, { "url": "https://git.kernel.org/stable/c/3dfb40da84f26dd35dd9bbaf626a2424565b8406" }, { "url": "https://git.kernel.org/stable/c/704573851b51808b45dae2d62059d1d8189138a2" } ], "title": "mm: krealloc: Fix MTE false alarm in __do_krealloc", "x_generator": { "engine": "bippy-5f407fcff5a0" } } }, "cveMetadata": { "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "assignerShortName": "Linux", "cveId": "CVE-2024-53097", "datePublished": "2024-11-25T21:21:26.549Z", "dateReserved": "2024-11-19T17:17:24.983Z", "dateUpdated": "2024-12-19T09:39:06.026Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2024-53097\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-11-25T22:15:15.763\",\"lastModified\":\"2024-11-25T22:15:15.763\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmm: krealloc: Fix MTE false alarm in __do_krealloc\\n\\nThis patch addresses an issue introduced by commit 1a83a716ec233 (\\\"mm:\\nkrealloc: consider spare memory for __GFP_ZERO\\\") which causes MTE\\n(Memory Tagging Extension) to falsely report a slab-out-of-bounds error.\\n\\nThe problem occurs when zeroing out spare memory in __do_krealloc. The\\noriginal code only considered software-based KASAN and did not account\\nfor MTE. It does not reset the KASAN tag before calling memset, leading\\nto a mismatch between the pointer tag and the memory tag, resulting\\nin a false positive.\\n\\nExample of the error:\\n==================================================================\\nswapper/0: BUG: KASAN: slab-out-of-bounds in __memset+0x84/0x188\\nswapper/0: Write at addr f4ffff8005f0fdf0 by task swapper/0/1\\nswapper/0: Pointer tag: [f4], memory tag: [fe]\\nswapper/0:\\nswapper/0: CPU: 4 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.12.\\nswapper/0: Hardware name: MT6991(ENG) (DT)\\nswapper/0: Call trace:\\nswapper/0: dump_backtrace+0xfc/0x17c\\nswapper/0: show_stack+0x18/0x28\\nswapper/0: dump_stack_lvl+0x40/0xa0\\nswapper/0: print_report+0x1b8/0x71c\\nswapper/0: kasan_report+0xec/0x14c\\nswapper/0: __do_kernel_fault+0x60/0x29c\\nswapper/0: do_bad_area+0x30/0xdc\\nswapper/0: do_tag_check_fault+0x20/0x34\\nswapper/0: do_mem_abort+0x58/0x104\\nswapper/0: el1_abort+0x3c/0x5c\\nswapper/0: el1h_64_sync_handler+0x80/0xcc\\nswapper/0: el1h_64_sync+0x68/0x6c\\nswapper/0: __memset+0x84/0x188\\nswapper/0: btf_populate_kfunc_set+0x280/0x3d8\\nswapper/0: __register_btf_kfunc_id_set+0x43c/0x468\\nswapper/0: register_btf_kfunc_id_set+0x48/0x60\\nswapper/0: register_nf_nat_bpf+0x1c/0x40\\nswapper/0: nf_nat_init+0xc0/0x128\\nswapper/0: do_one_initcall+0x184/0x464\\nswapper/0: do_initcall_level+0xdc/0x1b0\\nswapper/0: do_initcalls+0x70/0xc0\\nswapper/0: do_basic_setup+0x1c/0x28\\nswapper/0: kernel_init_freeable+0x144/0x1b8\\nswapper/0: kernel_init+0x20/0x1a8\\nswapper/0: ret_from_fork+0x10/0x20\\n==================================================================\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mm: krealloc: corrige la falsa alarma de MTE en __do_krealloc Este parche soluciona un problema introducido por el commit 1a83a716ec233 (\\\"mm: krealloc: considere la memoria de repuesto para __GFP_ZERO\\\") que hace que MTE (extensi\u00f3n de etiquetado de memoria) informe falsamente un error de losa fuera de los l\u00edmites. El problema ocurre al poner a cero la memoria de repuesto en __do_krealloc. El c\u00f3digo original solo consideraba KASAN basado en software y no ten\u00eda en cuenta MTE. No restablece la etiqueta KASAN antes de llamar a memset, lo que lleva a una falta de coincidencia entre la etiqueta del puntero y la etiqueta de memoria, lo que resulta en un falso positivo. Ejemplo del error: ================================================================== swapper/0: ERROR: KASAN: slab fuera de los l\u00edmites en __memset+0x84/0x188 swapper/0: Escritura en la direcci\u00f3n f4ffff8005f0fdf0 por la tarea swapper/0/1 swapper/0: Etiqueta de puntero: [f4], etiqueta de memoria: [fe] swapper/0: swapper/0: CPU: 4 UID: 0 PID: 1 Comm: swapper/0 No contaminado 6.12. swapper/0: Nombre del hardware: MT6991(ENG) (DT) swapper/0: Rastreo de llamadas: 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 intercambiador/0: el1h_64_sync_handler+0x80/0xcc intercambiador/0: el1h_64_sync+0x68/0x6c intercambiador/0: __memset+0x84/0x188 intercambiador/0: btf_populate_kfunc_set+0x280/0x3d8 intercambiador/0: __register_btf_kfunc_id_set+0x43c/0x468 intercambiador/0: register_btf_kfunc_id_set+0x48/0x60 intercambiador/0: register_nf_nat_bpf+0x1c/0x40 intercambiador/0: nf_nat_init+0xc0/0x128 intercambiador/0: do_one_initcall+0x184/0x464 intercambiador/0: do_initcall_level+0xdc/0x1b0 intercambiador/0: do_initcalls+0x70/0xc0 intercambiador/0: do_basic_setup+0x1c/0x28 intercambiador/0: kernel_init_freeable+0x144/0x1b8 intercambiador/0: kernel_init+0x20/0x1a8 intercambiador/0: ret_from_fork+0x10/0x20 ====================================================================\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/3dfb40da84f26dd35dd9bbaf626a2424565b8406\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/486aeb5f1855c75dd810c25036134961bd2a6722\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/704573851b51808b45dae2d62059d1d8189138a2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/71548fada7ee0eb50cc6ccda82dff010c745f92c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8ebee7565effdeae6085458f8f8463363120a871\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d02492863023431c31f85d570f718433c22b9311\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d43f1430d47c22a0727c05b6f156ed25fecdfeb4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}" } }
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Sightings
Author | Source | Type | Date |
---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.