CVE-2024-56368 (GCVE-0-2024-56368)
Vulnerability from cvelistv5
Published
2025-01-11 12:35
Modified
2025-05-04 09:57
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ring-buffer: Fix overflow in __rb_map_vma
An overflow occurred when performing the following calculation:
nr_pages = ((nr_subbufs + 1) << subbuf_order) - pgoff;
Add a check before the calculation to avoid this problem.
syzbot reported this as a slab-out-of-bounds in __rb_map_vma:
BUG: KASAN: slab-out-of-bounds in __rb_map_vma+0x9ab/0xae0 kernel/trace/ring_buffer.c:7058
Read of size 8 at addr ffff8880767dd2b8 by task syz-executor187/5836
CPU: 0 UID: 0 PID: 5836 Comm: syz-executor187 Not tainted 6.13.0-rc2-syzkaller-00159-gf932fb9b4074 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
print_address_description mm/kasan/report.c:378 [inline]
print_report+0xc3/0x620 mm/kasan/report.c:489
kasan_report+0xd9/0x110 mm/kasan/report.c:602
__rb_map_vma+0x9ab/0xae0 kernel/trace/ring_buffer.c:7058
ring_buffer_map+0x56e/0x9b0 kernel/trace/ring_buffer.c:7138
tracing_buffers_mmap+0xa6/0x120 kernel/trace/trace.c:8482
call_mmap include/linux/fs.h:2183 [inline]
mmap_file mm/internal.h:124 [inline]
__mmap_new_file_vma mm/vma.c:2291 [inline]
__mmap_new_vma mm/vma.c:2355 [inline]
__mmap_region+0x1786/0x2670 mm/vma.c:2456
mmap_region+0x127/0x320 mm/mmap.c:1348
do_mmap+0xc00/0xfc0 mm/mmap.c:496
vm_mmap_pgoff+0x1ba/0x360 mm/util.c:580
ksys_mmap_pgoff+0x32c/0x5c0 mm/mmap.c:542
__do_sys_mmap arch/x86/kernel/sys_x86_64.c:89 [inline]
__se_sys_mmap arch/x86/kernel/sys_x86_64.c:82 [inline]
__x64_sys_mmap+0x125/0x190 arch/x86/kernel/sys_x86_64.c:82
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
The reproducer for this bug is:
------------------------8<-------------------------
#include <fcntl.h>
#include <stdlib.h>
#include <unistd.h>
#include <asm/types.h>
#include <sys/mman.h>
int main(int argc, char **argv)
{
int page_size = getpagesize();
int fd;
void *meta;
system("echo 1 > /sys/kernel/tracing/buffer_size_kb");
fd = open("/sys/kernel/tracing/per_cpu/cpu0/trace_pipe_raw", O_RDONLY);
meta = mmap(NULL, page_size, PROT_READ, MAP_SHARED, fd, page_size * 5);
}
------------------------>8-------------------------
References
Impacted products
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"kernel/trace/ring_buffer.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "ec12f30fe54234dd40ffee50dda8d2df10bd0871",
"status": "affected",
"version": "117c39200d9d760cbd5944bb89efb7b9c51965aa",
"versionType": "git"
},
{
"lessThan": "c58a812c8e49ad688f94f4b050ad5c5b388fc5d2",
"status": "affected",
"version": "117c39200d9d760cbd5944bb89efb7b9c51965aa",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"kernel/trace/ring_buffer.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.10"
},
{
"lessThan": "6.10",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.7",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.13",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.7",
"versionStartIncluding": "6.10",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.13",
"versionStartIncluding": "6.10",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nring-buffer: Fix overflow in __rb_map_vma\n\nAn overflow occurred when performing the following calculation:\n\n nr_pages = ((nr_subbufs + 1) \u003c\u003c subbuf_order) - pgoff;\n\nAdd a check before the calculation to avoid this problem.\n\nsyzbot reported this as a slab-out-of-bounds in __rb_map_vma:\n\nBUG: KASAN: slab-out-of-bounds in __rb_map_vma+0x9ab/0xae0 kernel/trace/ring_buffer.c:7058\nRead of size 8 at addr ffff8880767dd2b8 by task syz-executor187/5836\n\nCPU: 0 UID: 0 PID: 5836 Comm: syz-executor187 Not tainted 6.13.0-rc2-syzkaller-00159-gf932fb9b4074 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024\nCall Trace:\n \u003cTASK\u003e\n __dump_stack lib/dump_stack.c:94 [inline]\n dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120\n print_address_description mm/kasan/report.c:378 [inline]\n print_report+0xc3/0x620 mm/kasan/report.c:489\n kasan_report+0xd9/0x110 mm/kasan/report.c:602\n __rb_map_vma+0x9ab/0xae0 kernel/trace/ring_buffer.c:7058\n ring_buffer_map+0x56e/0x9b0 kernel/trace/ring_buffer.c:7138\n tracing_buffers_mmap+0xa6/0x120 kernel/trace/trace.c:8482\n call_mmap include/linux/fs.h:2183 [inline]\n mmap_file mm/internal.h:124 [inline]\n __mmap_new_file_vma mm/vma.c:2291 [inline]\n __mmap_new_vma mm/vma.c:2355 [inline]\n __mmap_region+0x1786/0x2670 mm/vma.c:2456\n mmap_region+0x127/0x320 mm/mmap.c:1348\n do_mmap+0xc00/0xfc0 mm/mmap.c:496\n vm_mmap_pgoff+0x1ba/0x360 mm/util.c:580\n ksys_mmap_pgoff+0x32c/0x5c0 mm/mmap.c:542\n __do_sys_mmap arch/x86/kernel/sys_x86_64.c:89 [inline]\n __se_sys_mmap arch/x86/kernel/sys_x86_64.c:82 [inline]\n __x64_sys_mmap+0x125/0x190 arch/x86/kernel/sys_x86_64.c:82\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nThe reproducer for this bug is:\n\n------------------------8\u003c-------------------------\n #include \u003cfcntl.h\u003e\n #include \u003cstdlib.h\u003e\n #include \u003cunistd.h\u003e\n #include \u003casm/types.h\u003e\n #include \u003csys/mman.h\u003e\n\n int main(int argc, char **argv)\n {\n\tint page_size = getpagesize();\n\tint fd;\n\tvoid *meta;\n\n\tsystem(\"echo 1 \u003e /sys/kernel/tracing/buffer_size_kb\");\n\tfd = open(\"/sys/kernel/tracing/per_cpu/cpu0/trace_pipe_raw\", O_RDONLY);\n\n\tmeta = mmap(NULL, page_size, PROT_READ, MAP_SHARED, fd, page_size * 5);\n }\n------------------------\u003e8-------------------------"
}
],
"providerMetadata": {
"dateUpdated": "2025-05-04T09:57:20.641Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/ec12f30fe54234dd40ffee50dda8d2df10bd0871"
},
{
"url": "https://git.kernel.org/stable/c/c58a812c8e49ad688f94f4b050ad5c5b388fc5d2"
}
],
"title": "ring-buffer: Fix overflow in __rb_map_vma",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2024-56368",
"datePublished": "2025-01-11T12:35:45.719Z",
"dateReserved": "2025-01-09T09:49:29.671Z",
"dateUpdated": "2025-05-04T09:57:20.641Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2024-56368\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-01-11T13:15:28.530\",\"lastModified\":\"2025-01-11T13:15:28.530\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nring-buffer: Fix overflow in __rb_map_vma\\n\\nAn overflow occurred when performing the following calculation:\\n\\n nr_pages = ((nr_subbufs + 1) \u003c\u003c subbuf_order) - pgoff;\\n\\nAdd a check before the calculation to avoid this problem.\\n\\nsyzbot reported this as a slab-out-of-bounds in __rb_map_vma:\\n\\nBUG: KASAN: slab-out-of-bounds in __rb_map_vma+0x9ab/0xae0 kernel/trace/ring_buffer.c:7058\\nRead of size 8 at addr ffff8880767dd2b8 by task syz-executor187/5836\\n\\nCPU: 0 UID: 0 PID: 5836 Comm: syz-executor187 Not tainted 6.13.0-rc2-syzkaller-00159-gf932fb9b4074 #0\\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024\\nCall Trace:\\n \u003cTASK\u003e\\n __dump_stack lib/dump_stack.c:94 [inline]\\n dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120\\n print_address_description mm/kasan/report.c:378 [inline]\\n print_report+0xc3/0x620 mm/kasan/report.c:489\\n kasan_report+0xd9/0x110 mm/kasan/report.c:602\\n __rb_map_vma+0x9ab/0xae0 kernel/trace/ring_buffer.c:7058\\n ring_buffer_map+0x56e/0x9b0 kernel/trace/ring_buffer.c:7138\\n tracing_buffers_mmap+0xa6/0x120 kernel/trace/trace.c:8482\\n call_mmap include/linux/fs.h:2183 [inline]\\n mmap_file mm/internal.h:124 [inline]\\n __mmap_new_file_vma mm/vma.c:2291 [inline]\\n __mmap_new_vma mm/vma.c:2355 [inline]\\n __mmap_region+0x1786/0x2670 mm/vma.c:2456\\n mmap_region+0x127/0x320 mm/mmap.c:1348\\n do_mmap+0xc00/0xfc0 mm/mmap.c:496\\n vm_mmap_pgoff+0x1ba/0x360 mm/util.c:580\\n ksys_mmap_pgoff+0x32c/0x5c0 mm/mmap.c:542\\n __do_sys_mmap arch/x86/kernel/sys_x86_64.c:89 [inline]\\n __se_sys_mmap arch/x86/kernel/sys_x86_64.c:82 [inline]\\n __x64_sys_mmap+0x125/0x190 arch/x86/kernel/sys_x86_64.c:82\\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\\n do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83\\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\\n\\nThe reproducer for this bug is:\\n\\n------------------------8\u003c-------------------------\\n #include \u003cfcntl.h\u003e\\n #include \u003cstdlib.h\u003e\\n #include \u003cunistd.h\u003e\\n #include \u003casm/types.h\u003e\\n #include \u003csys/mman.h\u003e\\n\\n int main(int argc, char **argv)\\n {\\n\\tint page_size = getpagesize();\\n\\tint fd;\\n\\tvoid *meta;\\n\\n\\tsystem(\\\"echo 1 \u003e /sys/kernel/tracing/buffer_size_kb\\\");\\n\\tfd = open(\\\"/sys/kernel/tracing/per_cpu/cpu0/trace_pipe_raw\\\", O_RDONLY);\\n\\n\\tmeta = mmap(NULL, page_size, PROT_READ, MAP_SHARED, fd, page_size * 5);\\n }\\n------------------------\u003e8-------------------------\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ring-buffer: Corregir desbordamiento en __rb_map_vma Se produjo un desbordamiento al realizar el siguiente c\u00e1lculo: nr_pages = ((nr_subbufs + 1) \u0026lt;\u0026lt; subbuf_order) - pgoff; Agregue una verificaci\u00f3n antes del c\u00e1lculo para evitar este problema. syzbot report\u00f3 esto como un slab-out-of-bounds en __rb_map_vma: ERROR: KASAN: slab-out-of-bounds en __rb_map_vma+0x9ab/0xae0 kernel/trace/ring_buffer.c:7058 Lectura de tama\u00f1o 8 en la direcci\u00f3n ffff8880767dd2b8 por la tarea syz-executor187/5836 CPU: 0 UID: 0 PID: 5836 Comm: syz-executor187 No contaminado 6.13.0-rc2-syzkaller-00159-gf932fb9b4074 #0 Nombre del hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 25/11/2024 Seguimiento de llamadas: __dump_stack lib/dump_stack.c:94 [en l\u00ednea] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120 imprimir_direcci\u00f3n_descripci\u00f3n mm/kasan/report.c:378 [en l\u00ednea] imprimir_report+0xc3/0x620 mm/kasan/report.c:489 kasan_report+0xd9/0x110 mm/kasan/report.c:602 __rb_map_vma+0x9ab/0xae0 kernel/trace/ring_buffer.c:7058 mapa_de_buffer_de_anillo+0x56e/0x9b0 kernel/trace/ring_buffer.c:7138 rastreo_buffers_mmap+0xa6/0x120 kernel/trace/trace.c:8482 llamada_mmap include/linux/fs.h:2183 [en l\u00ednea] archivo_mmap mm/internal.h:124 [en l\u00ednea] __mmap_nuevo_archivo_vma mm/vma.c:2291 [en l\u00ednea] __mmap_nuevo_vma mm/vma.c:2355 [en l\u00ednea] __mmap_region+0x1786/0x2670 mm/vma.c:2456 mmap_region+0x127/0x320 mm/mmap.c:1348 do_mmap+0xc00/0xfc0 mm/mmap.c:496 vm_mmap_pgoff+0x1ba/0x360 mm/util.c:580 ksys_mmap_pgoff+0x32c/0x5c0 mm/mmap.c:542 __do_sys_mmap arch/x86/kernel/sys_x86_64.c:89 [en l\u00ednea] __se_sys_mmap arch/x86/kernel/sys_x86_64.c:82 [en l\u00ednea] __x64_sys_mmap+0x125/0x190 arch/x86/kernel/sys_x86_64.c:82 do_syscall_x64 arch/x86/entry/common.c:52 [en l\u00ednea] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f El reproductor de este error es: ------------------------8\u0026lt;-------------------------- #include #include #include #include #include int main(int argc, char **argv) { int tama\u00f1o_p\u00e1gina = getpagesize(); int fd; void *meta; system(\\\"echo 1 \u0026gt; /sys/kernel/tracing/buffer_size_kb\\\"); fd = open(\\\"/sys/kernel/tracing/per_cpu/cpu0/trace_pipe_raw\\\", O_RDONLY); meta = mmap(NULL, tama\u00f1o_p\u00e1gina, PROT_READ, MAP_SHARED, fd, tama\u00f1o_p\u00e1gina * 5); } ------------------------\u0026gt;8-------------------------\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/c58a812c8e49ad688f94f4b050ad5c5b388fc5d2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ec12f30fe54234dd40ffee50dda8d2df10bd0871\",\"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.
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