CVE-2021-47346 (GCVE-0-2021-47346)
Vulnerability from cvelistv5 – Published: 2024-05-21 14:35 – Updated: 2025-05-04 07:09
VLAI?
Title
coresight: tmc-etf: Fix global-out-of-bounds in tmc_update_etf_buffer()
Summary
In the Linux kernel, the following vulnerability has been resolved:
coresight: tmc-etf: Fix global-out-of-bounds in tmc_update_etf_buffer()
commit 6f755e85c332 ("coresight: Add helper for inserting synchronization
packets") removed trailing '\0' from barrier_pkt array and updated the
call sites like etb_update_buffer() to have proper checks for barrier_pkt
size before read but missed updating tmc_update_etf_buffer() which still
reads barrier_pkt past the array size resulting in KASAN out-of-bounds
bug. Fix this by adding a check for barrier_pkt size before accessing
like it is done in etb_update_buffer().
BUG: KASAN: global-out-of-bounds in tmc_update_etf_buffer+0x4b8/0x698
Read of size 4 at addr ffffffd05b7d1030 by task perf/2629
Call trace:
dump_backtrace+0x0/0x27c
show_stack+0x20/0x2c
dump_stack+0x11c/0x188
print_address_description+0x3c/0x4a4
__kasan_report+0x140/0x164
kasan_report+0x10/0x18
__asan_report_load4_noabort+0x1c/0x24
tmc_update_etf_buffer+0x4b8/0x698
etm_event_stop+0x248/0x2d8
etm_event_del+0x20/0x2c
event_sched_out+0x214/0x6f0
group_sched_out+0xd0/0x270
ctx_sched_out+0x2ec/0x518
__perf_event_task_sched_out+0x4fc/0xe6c
__schedule+0x1094/0x16a0
preempt_schedule_irq+0x88/0x170
arm64_preempt_schedule_irq+0xf0/0x18c
el1_irq+0xe8/0x180
perf_event_exec+0x4d8/0x56c
setup_new_exec+0x204/0x400
load_elf_binary+0x72c/0x18c0
search_binary_handler+0x13c/0x420
load_script+0x500/0x6c4
search_binary_handler+0x13c/0x420
exec_binprm+0x118/0x654
__do_execve_file+0x77c/0xba4
__arm64_compat_sys_execve+0x98/0xac
el0_svc_common+0x1f8/0x5e0
el0_svc_compat_handler+0x84/0xb0
el0_svc_compat+0x10/0x50
The buggy address belongs to the variable:
barrier_pkt+0x10/0x40
Memory state around the buggy address:
ffffffd05b7d0f00: fa fa fa fa 04 fa fa fa fa fa fa fa 00 00 00 00
ffffffd05b7d0f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffffffd05b7d1000: 00 00 00 00 00 00 fa fa fa fa fa fa 00 00 00 03
^
ffffffd05b7d1080: fa fa fa fa 00 02 fa fa fa fa fa fa 03 fa fa fa
ffffffd05b7d1100: fa fa fa fa 00 00 00 00 05 fa fa fa fa fa fa fa
==================================================================
Severity ?
No CVSS data available.
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Linux | Linux |
Affected:
0c3fc4d5fa26092853278145aca9b21fa52a3e93 , < 04bd77ef4f4d9fc6102023b85f4590fc2130aac5
(git)
Affected: 0c3fc4d5fa26092853278145aca9b21fa52a3e93 , < ef0a06acc6b16388640ad367eedfa2a17f1945db (git) Affected: 0c3fc4d5fa26092853278145aca9b21fa52a3e93 , < 35c1c4bd2d59ad734129d4e232af9d1098023918 (git) Affected: 0c3fc4d5fa26092853278145aca9b21fa52a3e93 , < 733d4d95c0101d5f277b8e4910411d016e49a9dc (git) Affected: 0c3fc4d5fa26092853278145aca9b21fa52a3e93 , < 0115687be7b13993066aef602253a53d55f5b11f (git) Affected: 0c3fc4d5fa26092853278145aca9b21fa52a3e93 , < 5fae8a946ac2df879caf3f79a193d4766d00239b (git) |
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"nvd": "{\"cve\":{\"id\":\"CVE-2021-47346\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-05-21T15:15:21.217\",\"lastModified\":\"2025-03-06T12:57:41.553\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ncoresight: tmc-etf: Fix global-out-of-bounds in tmc_update_etf_buffer()\\n\\ncommit 6f755e85c332 (\\\"coresight: Add helper for inserting synchronization\\npackets\\\") removed trailing \u0027\\\\0\u0027 from barrier_pkt array and updated the\\ncall sites like etb_update_buffer() to have proper checks for barrier_pkt\\nsize before read but missed updating tmc_update_etf_buffer() which still\\nreads barrier_pkt past the array size resulting in KASAN out-of-bounds\\nbug. Fix this by adding a check for barrier_pkt size before accessing\\nlike it is done in etb_update_buffer().\\n\\n BUG: KASAN: global-out-of-bounds in tmc_update_etf_buffer+0x4b8/0x698\\n Read of size 4 at addr ffffffd05b7d1030 by task perf/2629\\n\\n Call trace:\\n dump_backtrace+0x0/0x27c\\n show_stack+0x20/0x2c\\n dump_stack+0x11c/0x188\\n print_address_description+0x3c/0x4a4\\n __kasan_report+0x140/0x164\\n kasan_report+0x10/0x18\\n __asan_report_load4_noabort+0x1c/0x24\\n tmc_update_etf_buffer+0x4b8/0x698\\n etm_event_stop+0x248/0x2d8\\n etm_event_del+0x20/0x2c\\n event_sched_out+0x214/0x6f0\\n group_sched_out+0xd0/0x270\\n ctx_sched_out+0x2ec/0x518\\n __perf_event_task_sched_out+0x4fc/0xe6c\\n __schedule+0x1094/0x16a0\\n preempt_schedule_irq+0x88/0x170\\n arm64_preempt_schedule_irq+0xf0/0x18c\\n el1_irq+0xe8/0x180\\n perf_event_exec+0x4d8/0x56c\\n setup_new_exec+0x204/0x400\\n load_elf_binary+0x72c/0x18c0\\n search_binary_handler+0x13c/0x420\\n load_script+0x500/0x6c4\\n search_binary_handler+0x13c/0x420\\n exec_binprm+0x118/0x654\\n __do_execve_file+0x77c/0xba4\\n __arm64_compat_sys_execve+0x98/0xac\\n el0_svc_common+0x1f8/0x5e0\\n el0_svc_compat_handler+0x84/0xb0\\n el0_svc_compat+0x10/0x50\\n\\n The buggy address belongs to the variable:\\n barrier_pkt+0x10/0x40\\n\\n Memory state around the buggy address:\\n ffffffd05b7d0f00: fa fa fa fa 04 fa fa fa fa fa fa fa 00 00 00 00\\n ffffffd05b7d0f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\\n \u003effffffd05b7d1000: 00 00 00 00 00 00 fa fa fa fa fa fa 00 00 00 03\\n ^\\n ffffffd05b7d1080: fa fa fa fa 00 02 fa fa fa fa fa fa 03 fa fa fa\\n ffffffd05b7d1100: fa fa fa fa 00 00 00 00 05 fa fa fa fa fa fa fa\\n ==================================================================\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: coresight: tmc-etf: Correcci\u00f3n global fuera de los l\u00edmites en tmc_update_etf_buffer() confirmaci\u00f3n 6f755e85c332 (\\\"coresight: Agregar ayuda para insertar paquetes de sincronizaci\u00f3n\\\") eliminado el final \u0027\\\\0\u0027 desde la matriz barrier_pkt y actualic\u00e9 los sitios de llamadas como etb_update_buffer() para realizar comprobaciones adecuadas del tama\u00f1o de la barrera_pkt antes de leer, pero no se actualiz\u00f3 tmc_update_etf_buffer(), que todav\u00eda lee barrier_pkt m\u00e1s all\u00e1 del tama\u00f1o de la matriz, lo que genera un error de KASAN fuera de los l\u00edmites. Solucione este problema agregando una verificaci\u00f3n del tama\u00f1o de barrier_pkt antes de acceder, como se hace en etb_update_buffer(). bug: KASAN: global fuera de los l\u00edmites en tmc_update_etf_buffer+0x4b8/0x698 Lectura de tama\u00f1o 4 en la direcci\u00f3n ffffffd05b7d1030 por tarea perf/2629 Rastreo de llamadas: dump_backtrace+0x0/0x27c show_stack+0x20/0x2c dump_stack+0x11c/0x188 descripci\u00f3n+0x3c /0x4a4 __kasan_report+0x140/0x164 kasan_report+0x10/0x18 __asan_report_load4_noabort+0x1c/0x24 tmc_update_etf_buffer+0x4b8/0x698 etm_event_stop+0x248/0x2d8 etm_event_del+0x20/0x2c event_sched_out+0x214/0x6f0 group_sched_out+0xd0/0x270 ctx_sched_out+0x2ec/0x518 __perf_event_task_sched_out+0x4fc /0xe6c __schedule+0x1094/0x16a0 preempt_schedule_irq+0x88/0x170 arm64_preempt_schedule_irq+0xf0/0x18c el1_irq+0xe8/0x180 perf_event_exec+0x4d8/0x56c setup_new_exec+0x204/0x4 00 load_elf_binary+0x72c/0x18c0 search_binary_handler+0x13c/0x420 load_script+0x500/0x6c4 search_binary_handler+0x13c /0x420 exec_binprm+0x118/0x654 __do_execve_file+0x77c/0xba4 __arm64_compat_sys_execve+0x98/0xac el0_svc_common+0x1f8/0x5e0 el0_svc_compat_handler+0x84/0xb0 x10/0x50 La direcci\u00f3n del buggy pertenece a la variable: barrier_pkt+0x10/0x40 Estado de la memoria alrededor del buggy direcci\u00f3n: ffffffd05b7d0f00: fa fa fa fa 04 fa fa fa fa fa fa fa 00 00 00 00 ffffffd05b7d0f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 \u0026gt;ffffffd05b7d1000: 0 00 00 00 00 00 fa fa fa fa fa fa 00 00 00 03 ^ ffffffd05b7d1080: fa fa fa fa 00 02 fa fa fa fa fa fa 03 fa fa fa ffffffd05b7d1100: fa fa fa fa 00 00 00 00 05 fa fa fa fa fa fa fa ====== ==================================================== ==========\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H\",\"baseScore\":7.1,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.2}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-125\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.14\",\"versionEndExcluding\":\"4.19.198\",\"matchCriteriaId\":\"FF4CC424-32DE-434F-BAFA-9BC2F78E35C1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.133\",\"matchCriteriaId\":\"65A8F1FF-5639-455A-8BF4-9FF529240505\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.51\",\"matchCriteriaId\":\"93289127-DFB3-4515-89DD-50521FF8B7FF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.12.18\",\"matchCriteriaId\":\"79D13C82-E06F-4A70-A3D1-C09494FBC94D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.13\",\"versionEndExcluding\":\"5.13.3\",\"matchCriteriaId\":\"853187F6-707A-487B-95C0-621B5211B43C\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0115687be7b13993066aef602253a53d55f5b11f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/04bd77ef4f4d9fc6102023b85f4590fc2130aac5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/35c1c4bd2d59ad734129d4e232af9d1098023918\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/5fae8a946ac2df879caf3f79a193d4766d00239b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/733d4d95c0101d5f277b8e4910411d016e49a9dc\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ef0a06acc6b16388640ad367eedfa2a17f1945db\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/0115687be7b13993066aef602253a53d55f5b11f\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/04bd77ef4f4d9fc6102023b85f4590fc2130aac5\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/35c1c4bd2d59ad734129d4e232af9d1098023918\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/5fae8a946ac2df879caf3f79a193d4766d00239b\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/733d4d95c0101d5f277b8e4910411d016e49a9dc\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ef0a06acc6b16388640ad367eedfa2a17f1945db\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]}]}}",
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/04bd77ef4f4d9fc6102023b85f4590fc2130aac5\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/ef0a06acc6b16388640ad367eedfa2a17f1945db\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/35c1c4bd2d59ad734129d4e232af9d1098023918\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/733d4d95c0101d5f277b8e4910411d016e49a9dc\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/0115687be7b13993066aef602253a53d55f5b11f\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/5fae8a946ac2df879caf3f79a193d4766d00239b\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-04T05:32:08.526Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2021-47346\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-06-12T14:59:57.859823Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-06-12T15:00:06.542Z\"}}], \"cna\": {\"title\": \"coresight: tmc-etf: Fix global-out-of-bounds in tmc_update_etf_buffer()\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"0c3fc4d5fa26\", \"lessThan\": \"04bd77ef4f4d\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"0c3fc4d5fa26\", \"lessThan\": \"ef0a06acc6b1\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"0c3fc4d5fa26\", \"lessThan\": \"35c1c4bd2d59\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"0c3fc4d5fa26\", \"lessThan\": \"733d4d95c010\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"0c3fc4d5fa26\", \"lessThan\": \"0115687be7b1\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"0c3fc4d5fa26\", \"lessThan\": \"5fae8a946ac2\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/hwtracing/coresight/coresight-tmc-etf.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.14\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"4.14\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.19.198\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.133\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.51\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.12.18\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.12.*\"}, {\"status\": \"unaffected\", \"version\": \"5.13.3\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.13.*\"}, {\"status\": \"unaffected\", \"version\": \"5.14\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/hwtracing/coresight/coresight-tmc-etf.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/04bd77ef4f4d9fc6102023b85f4590fc2130aac5\"}, {\"url\": \"https://git.kernel.org/stable/c/ef0a06acc6b16388640ad367eedfa2a17f1945db\"}, {\"url\": \"https://git.kernel.org/stable/c/35c1c4bd2d59ad734129d4e232af9d1098023918\"}, {\"url\": \"https://git.kernel.org/stable/c/733d4d95c0101d5f277b8e4910411d016e49a9dc\"}, {\"url\": \"https://git.kernel.org/stable/c/0115687be7b13993066aef602253a53d55f5b11f\"}, {\"url\": \"https://git.kernel.org/stable/c/5fae8a946ac2df879caf3f79a193d4766d00239b\"}], \"x_generator\": {\"engine\": \"bippy-9e1c9544281a\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\ncoresight: tmc-etf: Fix global-out-of-bounds in tmc_update_etf_buffer()\\n\\ncommit 6f755e85c332 (\\\"coresight: Add helper for inserting synchronization\\npackets\\\") removed trailing \u0027\\\\0\u0027 from barrier_pkt array and updated the\\ncall sites like etb_update_buffer() to have proper checks for barrier_pkt\\nsize before read but missed updating tmc_update_etf_buffer() which still\\nreads barrier_pkt past the array size resulting in KASAN out-of-bounds\\nbug. Fix this by adding a check for barrier_pkt size before accessing\\nlike it is done in etb_update_buffer().\\n\\n BUG: KASAN: global-out-of-bounds in tmc_update_etf_buffer+0x4b8/0x698\\n Read of size 4 at addr ffffffd05b7d1030 by task perf/2629\\n\\n Call trace:\\n dump_backtrace+0x0/0x27c\\n show_stack+0x20/0x2c\\n dump_stack+0x11c/0x188\\n print_address_description+0x3c/0x4a4\\n __kasan_report+0x140/0x164\\n kasan_report+0x10/0x18\\n __asan_report_load4_noabort+0x1c/0x24\\n tmc_update_etf_buffer+0x4b8/0x698\\n etm_event_stop+0x248/0x2d8\\n etm_event_del+0x20/0x2c\\n event_sched_out+0x214/0x6f0\\n group_sched_out+0xd0/0x270\\n ctx_sched_out+0x2ec/0x518\\n __perf_event_task_sched_out+0x4fc/0xe6c\\n __schedule+0x1094/0x16a0\\n preempt_schedule_irq+0x88/0x170\\n arm64_preempt_schedule_irq+0xf0/0x18c\\n el1_irq+0xe8/0x180\\n perf_event_exec+0x4d8/0x56c\\n setup_new_exec+0x204/0x400\\n load_elf_binary+0x72c/0x18c0\\n search_binary_handler+0x13c/0x420\\n load_script+0x500/0x6c4\\n search_binary_handler+0x13c/0x420\\n exec_binprm+0x118/0x654\\n __do_execve_file+0x77c/0xba4\\n __arm64_compat_sys_execve+0x98/0xac\\n el0_svc_common+0x1f8/0x5e0\\n el0_svc_compat_handler+0x84/0xb0\\n el0_svc_compat+0x10/0x50\\n\\n The buggy address belongs to the variable:\\n barrier_pkt+0x10/0x40\\n\\n Memory state around the buggy address:\\n ffffffd05b7d0f00: fa fa fa fa 04 fa fa fa fa fa fa fa 00 00 00 00\\n ffffffd05b7d0f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\\n \u003effffffd05b7d1000: 00 00 00 00 00 00 fa fa fa fa fa fa 00 00 00 03\\n ^\\n ffffffd05b7d1080: fa fa fa fa 00 02 fa fa fa fa fa fa 03 fa fa fa\\n ffffffd05b7d1100: fa fa fa fa 00 00 00 00 05 fa fa fa fa fa fa fa\\n ==================================================================\"}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2024-11-04T12:04:08.722Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2021-47346\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-11-04T12:04:08.722Z\", \"dateReserved\": \"2024-05-21T14:28:16.980Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-21T14:35:52.284Z\", \"assignerShortName\": \"Linux\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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