{ "dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": { "cveId": "CVE-2021-47169", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-03-25T09:12:14.111Z", "datePublished": "2024-03-25T09:16:21.589Z", "dateUpdated": "2024-08-04T05:24:40.135Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-05-29T05:03:15.573Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nserial: rp2: use 'request_firmware' instead of 'request_firmware_nowait'\n\nIn 'rp2_probe', the driver registers 'rp2_uart_interrupt' then calls\n'rp2_fw_cb' through 'request_firmware_nowait'. In 'rp2_fw_cb', if the\nfirmware don't exists, function just return without initializing ports\nof 'rp2_card'. But now the interrupt handler function has been\nregistered, and when an interrupt comes, 'rp2_uart_interrupt' may access\nthose ports then causing NULL pointer dereference or other bugs.\n\nBecause the driver does some initialization work in 'rp2_fw_cb', in\norder to make the driver ready to handle interrupts, 'request_firmware'\nshould be used instead of asynchronous 'request_firmware_nowait'.\n\nThis report reveals it:\n\nINFO: trying to register non-static key.\nthe code is fine but needs lockdep annotation.\nturning off the locking correctness validator.\nCPU: 2 PID: 0 Comm: swapper/2 Not tainted 4.19.177-gdba4159c14ef-dirty #45\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-\ngc9ba5276e321-prebuilt.qemu.org 04/01/2014\nCall Trace:\n \n __dump_stack lib/dump_stack.c:77 [inline]\n dump_stack+0xec/0x156 lib/dump_stack.c:118\n assign_lock_key kernel/locking/lockdep.c:727 [inline]\n register_lock_class+0x14e5/0x1ba0 kernel/locking/lockdep.c:753\n __lock_acquire+0x187/0x3750 kernel/locking/lockdep.c:3303\n lock_acquire+0x124/0x340 kernel/locking/lockdep.c:3907\n __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]\n _raw_spin_lock+0x32/0x50 kernel/locking/spinlock.c:144\n spin_lock include/linux/spinlock.h:329 [inline]\n rp2_ch_interrupt drivers/tty/serial/rp2.c:466 [inline]\n rp2_asic_interrupt.isra.9+0x15d/0x990 drivers/tty/serial/rp2.c:493\n rp2_uart_interrupt+0x49/0xe0 drivers/tty/serial/rp2.c:504\n __handle_irq_event_percpu+0xfb/0x770 kernel/irq/handle.c:149\n handle_irq_event_percpu+0x79/0x150 kernel/irq/handle.c:189\n handle_irq_event+0xac/0x140 kernel/irq/handle.c:206\n handle_fasteoi_irq+0x232/0x5c0 kernel/irq/chip.c:725\n generic_handle_irq_desc include/linux/irqdesc.h:155 [inline]\n handle_irq+0x230/0x3a0 arch/x86/kernel/irq_64.c:87\n do_IRQ+0xa7/0x1e0 arch/x86/kernel/irq.c:247\n common_interrupt+0xf/0xf arch/x86/entry/entry_64.S:670\n \nRIP: 0010:native_safe_halt+0x28/0x30 arch/x86/include/asm/irqflags.h:61\nCode: 00 00 55 be 04 00 00 00 48 c7 c7 00 c2 2f 8c 48 89 e5 e8 fb 31 e7 f8\n8b 05 75 af 8d 03 85 c0 7e 07 0f 00 2d 8a 61 65 00 fb f4 <5d> c3 90 90 90\n90 90 90 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 41\nRSP: 0018:ffff88806b71fcc8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffffde\nRAX: 0000000000000000 RBX: ffffffff8bde7e48 RCX: ffffffff88a21285\nRDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff8c2fc200\nRBP: ffff88806b71fcc8 R08: fffffbfff185f840 R09: fffffbfff185f840\nR10: 0000000000000001 R11: fffffbfff185f840 R12: 0000000000000002\nR13: ffffffff8bea18a0 R14: 0000000000000000 R15: 0000000000000000\n arch_safe_halt arch/x86/include/asm/paravirt.h:94 [inline]\n default_idle+0x6f/0x360 arch/x86/kernel/process.c:557\n arch_cpu_idle+0xf/0x20 arch/x86/kernel/process.c:548\n default_idle_call+0x3b/0x60 kernel/sched/idle.c:93\n cpuidle_idle_call kernel/sched/idle.c:153 [inline]\n do_idle+0x2ab/0x3c0 kernel/sched/idle.c:263\n cpu_startup_entry+0xcb/0xe0 kernel/sched/idle.c:369\n start_secondary+0x3b8/0x4e0 arch/x86/kernel/smpboot.c:271\n secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243\nBUG: unable to handle kernel NULL pointer dereference at 0000000000000010\nPGD 8000000056d27067 P4D 8000000056d27067 PUD 56d28067 PMD 0\nOops: 0000 [#1] PREEMPT SMP KASAN PTI\nCPU: 2 PID: 0 Comm: swapper/2 Not tainted 4.19.177-gdba4159c14ef-dirty #45\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-\ngc9ba5276e321-prebuilt.qemu.org 04/01/2014\nRIP: 0010:readl arch/x86/include/asm/io.h:59 [inline]\nRIP: 0010:rp2_ch_interrupt drivers/tty/serial/rp2.c:472 [inline]\nRIP: 0010:rp2_asic_interrupt.isra.9+0x181/0x990 drivers/tty/serial/rp2.c:\n493\nCo\n---truncated---" } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/tty/serial/rp2.c" ], "versions": [ { "version": "1da177e4c3f4", "lessThan": "1e04d5d5fe5e", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f4", "lessThan": "c697244ce940", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f4", "lessThan": "1cc57cb32c84", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f4", "lessThan": "35265552c7fe", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f4", "lessThan": "915452f40e2f", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f4", "lessThan": "6a931ceb0b94", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f4", "lessThan": "9b07b6973f73", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f4", "lessThan": "016002848c82", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/tty/serial/rp2.c" ], "versions": [ { "version": "4.4.271", "lessThanOrEqual": "4.4.*", "status": "unaffected", "versionType": "custom" }, { "version": "4.9.271", "lessThanOrEqual": "4.9.*", "status": "unaffected", "versionType": "custom" }, { "version": "4.14.235", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "custom" }, { "version": "4.19.193", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.4.124", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.10.42", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.12.9", "lessThanOrEqual": "5.12.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.13", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/1e04d5d5fe5e76af68f834e1941fcbfa439653be" }, { "url": "https://git.kernel.org/stable/c/c697244ce940ec07e2d745ccb63ca97fc0266fbc" }, { "url": "https://git.kernel.org/stable/c/1cc57cb32c84e059bd158494f746b665fc14d1b1" }, { "url": "https://git.kernel.org/stable/c/35265552c7fe9553c75e324c80f45e28ff14eb6e" }, { "url": "https://git.kernel.org/stable/c/915452f40e2f495e187276c4407a4f567ec2307e" }, { "url": "https://git.kernel.org/stable/c/6a931ceb0b9401fe18d0c500e08164bf9cc7be4b" }, { "url": "https://git.kernel.org/stable/c/9b07b6973f7359e2dd6a9fe6db0c142634c823b7" }, { "url": "https://git.kernel.org/stable/c/016002848c82eeb5d460489ce392d91fe18c475c" } ], "title": "serial: rp2: use 'request_firmware' instead of 'request_firmware_nowait'", "x_generator": { "engine": "bippy-a5840b7849dd" } }, "adp": [ { "title": "CISA ADP Vulnrichment", "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2021-47169", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2024-03-25T15:14:46.131045Z" } } } ], "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-04T17:14:26.856Z" } }, { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:24:40.135Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/1e04d5d5fe5e76af68f834e1941fcbfa439653be", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/c697244ce940ec07e2d745ccb63ca97fc0266fbc", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/1cc57cb32c84e059bd158494f746b665fc14d1b1", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/35265552c7fe9553c75e324c80f45e28ff14eb6e", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/915452f40e2f495e187276c4407a4f567ec2307e", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/6a931ceb0b9401fe18d0c500e08164bf9cc7be4b", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/9b07b6973f7359e2dd6a9fe6db0c142634c823b7", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/016002848c82eeb5d460489ce392d91fe18c475c", "tags": [ "x_transferred" ] } ] } ] } }