cve-2021-47457
Vulnerability from cvelistv5
Published
2024-05-22 06:19
Modified
2024-08-04 05:39
Severity
Summary
can: isotp: isotp_sendmsg(): add result check for wait_event_interruptible()
References
SourceURLTags
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/053bc12df0d6097c1126d0e14fa778a0a8faeb64
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9acf636215a6ce9362fe618e7da4913b8bfe84c8
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a76abedd2be3926d6deba236a935c7f98abf9110
Impacted products
VendorProduct
LinuxLinux
LinuxLinux
Show details on NVD website

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    "datePublished": "2024-05-22T06:19:46.021Z",
    "dateReserved": "2024-05-21T14:58:30.833Z",
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    "nvd": "{\"cve\":{\"id\":\"CVE-2021-47457\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-05-22T07:15:10.710\",\"lastModified\":\"2024-05-22T12:46:53.887\",\"vulnStatus\":\"Awaiting Analysis\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ncan: isotp: isotp_sendmsg(): add result check for wait_event_interruptible()\\n\\nUsing wait_event_interruptible() to wait for complete transmission,\\nbut do not check the result of wait_event_interruptible() which can be\\ninterrupted. It will result in TX buffer has multiple accessors and\\nthe later process interferes with the previous process.\\n\\nFollowing is one of the problems reported by syzbot.\\n\\n=============================================================\\nWARNING: CPU: 0 PID: 0 at net/can/isotp.c:840 isotp_tx_timer_handler+0x2e0/0x4c0\\nCPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.13.0-rc7+ #68\\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1 04/01/2014\\nRIP: 0010:isotp_tx_timer_handler+0x2e0/0x4c0\\nCall Trace:\\n \u003cIRQ\u003e\\n ? isotp_setsockopt+0x390/0x390\\n __hrtimer_run_queues+0xb8/0x610\\n hrtimer_run_softirq+0x91/0xd0\\n ? rcu_read_lock_sched_held+0x4d/0x80\\n __do_softirq+0xe8/0x553\\n irq_exit_rcu+0xf8/0x100\\n sysvec_apic_timer_interrupt+0x9e/0xc0\\n \u003c/IRQ\u003e\\n asm_sysvec_apic_timer_interrupt+0x12/0x20\\n\\nAdd result check for wait_event_interruptible() in isotp_sendmsg()\\nto avoid multiple accessers for tx buffer.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: can: isotp: isotp_sendmsg(): agregar verificaci\u00f3n de resultado para wait_event_interruptible() Usar wait_event_interruptible() para esperar la transmisi\u00f3n completa, pero no verificar el resultado de wait_event_interruptible() que puede ser interrumpido. Dar\u00e1 como resultado que el b\u00fafer TX tenga m\u00faltiples accesos y el proceso posterior interfiera con el proceso anterior. El siguiente es uno de los problemas informados por syzbot. ==================================================== =========== ADVERTENCIA: CPU: 0 PID: 0 en net/can/isotp.c:840 isotp_tx_timer_handler+0x2e0/0x4c0 CPU: 0 PID: 0 Comm: swapper/0 No contaminado 5.13.0 -rc7+ #68 Nombre del hardware: PC est\u00e1ndar QEMU (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1 01/04/2014 RIP: 0010:isotp_tx_timer_handler+0x2e0/0x4c0 Seguimiento de llamadas:  ? isotp_setsockopt+0x390/0x390 __hrtimer_run_queues+0xb8/0x610 hrtimer_run_softirq+0x91/0xd0 ? rcu_read_lock_sched_held+0x4d/0x80 __do_softirq+0xe8/0x553 irq_exit_rcu+0xf8/0x100 sysvec_apic_timer_interrupt+0x9e/0xc0  asm_sysvec_apic_timer_interrupt+0x12/0x20 Agregar verificaci\u00f3n de resultado para wait_event_ interrumpible() en isotp_sendmsg() para evitar m\u00faltiples accesos al b\u00fafer tx.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/053bc12df0d6097c1126d0e14fa778a0a8faeb64\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/9acf636215a6ce9362fe618e7da4913b8bfe84c8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a76abedd2be3926d6deba236a935c7f98abf9110\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
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