cve-2021-46931
Vulnerability from cvelistv5
Published
2024-02-27 09:43
Modified
2024-12-19 07:32
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Wrap the tx reporter dump callback to extract the sq Function mlx5e_tx_reporter_dump_sq() casts its void * argument to struct mlx5e_txqsq *, but in TX-timeout-recovery flow the argument is actually of type struct mlx5e_tx_timeout_ctx *. mlx5_core 0000:08:00.1 enp8s0f1: TX timeout detected mlx5_core 0000:08:00.1 enp8s0f1: TX timeout on queue: 1, SQ: 0x11ec, CQ: 0x146d, SQ Cons: 0x0 SQ Prod: 0x1, usecs since last trans: 21565000 BUG: stack guard page was hit at 0000000093f1a2de (stack is 00000000b66ea0dc..000000004d932dae) kernel stack overflow (page fault): 0000 [#1] SMP NOPTI CPU: 5 PID: 95 Comm: kworker/u20:1 Tainted: G W OE 5.13.0_mlnx #1 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 Workqueue: mlx5e mlx5e_tx_timeout_work [mlx5_core] RIP: 0010:mlx5e_tx_reporter_dump_sq+0xd3/0x180 [mlx5_core] Call Trace: mlx5e_tx_reporter_dump+0x43/0x1c0 [mlx5_core] devlink_health_do_dump.part.91+0x71/0xd0 devlink_health_report+0x157/0x1b0 mlx5e_reporter_tx_timeout+0xb9/0xf0 [mlx5_core] ? mlx5e_tx_reporter_err_cqe_recover+0x1d0/0x1d0 [mlx5_core] ? mlx5e_health_queue_dump+0xd0/0xd0 [mlx5_core] ? update_load_avg+0x19b/0x550 ? set_next_entity+0x72/0x80 ? pick_next_task_fair+0x227/0x340 ? finish_task_switch+0xa2/0x280 mlx5e_tx_timeout_work+0x83/0xb0 [mlx5_core] process_one_work+0x1de/0x3a0 worker_thread+0x2d/0x3c0 ? process_one_work+0x3a0/0x3a0 kthread+0x115/0x130 ? kthread_park+0x90/0x90 ret_from_fork+0x1f/0x30 --[ end trace 51ccabea504edaff ]--- RIP: 0010:mlx5e_tx_reporter_dump_sq+0xd3/0x180 PKRU: 55555554 Kernel panic - not syncing: Fatal exception Kernel Offset: disabled end Kernel panic - not syncing: Fatal exception To fix this bug add a wrapper for mlx5e_tx_reporter_dump_sq() which extracts the sq from struct mlx5e_tx_timeout_ctx and set it as the TX-timeout-recovery flow dump callback.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/07f13d58a8ecc3baf9a488588fb38c5cb0db484fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/73665165b64a8f3c5b3534009a69be55bb744f05Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/918fc3855a6507a200e9cf22c20be852c0982687Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/07f13d58a8ecc3baf9a488588fb38c5cb0db484fPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/73665165b64a8f3c5b3534009a69be55bb744f05Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/918fc3855a6507a200e9cf22c20be852c0982687Patch
Impacted products
Vendor Product Version
Linux Linux Version: 5.7
Show details on NVD website

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    "dateReserved": "2024-02-25T13:45:52.720Z",
    "dateUpdated": "2024-12-19T07:32:02.899Z",
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    "nvd": "{\"cve\":{\"id\":\"CVE-2021-46931\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-02-27T10:15:07.690\",\"lastModified\":\"2024-11-21T06:34:57.650\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet/mlx5e: Wrap the tx reporter dump callback to extract the sq\\n\\nFunction mlx5e_tx_reporter_dump_sq() casts its void * argument to struct\\nmlx5e_txqsq *, but in TX-timeout-recovery flow the argument is actually\\nof type struct mlx5e_tx_timeout_ctx *.\\n\\n mlx5_core 0000:08:00.1 enp8s0f1: TX timeout detected\\n mlx5_core 0000:08:00.1 enp8s0f1: TX timeout on queue: 1, SQ: 0x11ec, CQ: 0x146d, SQ Cons: 0x0 SQ Prod: 0x1, usecs since last trans: 21565000\\n BUG: stack guard page was hit at 0000000093f1a2de (stack is 00000000b66ea0dc..000000004d932dae)\\n kernel stack overflow (page fault): 0000 [#1] SMP NOPTI\\n CPU: 5 PID: 95 Comm: kworker/u20:1 Tainted: G W OE 5.13.0_mlnx #1\\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\\n Workqueue: mlx5e mlx5e_tx_timeout_work [mlx5_core]\\n RIP: 0010:mlx5e_tx_reporter_dump_sq+0xd3/0x180\\n [mlx5_core]\\n Call Trace:\\n mlx5e_tx_reporter_dump+0x43/0x1c0 [mlx5_core]\\n devlink_health_do_dump.part.91+0x71/0xd0\\n devlink_health_report+0x157/0x1b0\\n mlx5e_reporter_tx_timeout+0xb9/0xf0 [mlx5_core]\\n ? mlx5e_tx_reporter_err_cqe_recover+0x1d0/0x1d0\\n [mlx5_core]\\n ? mlx5e_health_queue_dump+0xd0/0xd0 [mlx5_core]\\n ? update_load_avg+0x19b/0x550\\n ? set_next_entity+0x72/0x80\\n ? pick_next_task_fair+0x227/0x340\\n ? finish_task_switch+0xa2/0x280\\n   mlx5e_tx_timeout_work+0x83/0xb0 [mlx5_core]\\n   process_one_work+0x1de/0x3a0\\n   worker_thread+0x2d/0x3c0\\n ? process_one_work+0x3a0/0x3a0\\n   kthread+0x115/0x130\\n ? kthread_park+0x90/0x90\\n   ret_from_fork+0x1f/0x30\\n --[ end trace 51ccabea504edaff ]---\\n RIP: 0010:mlx5e_tx_reporter_dump_sq+0xd3/0x180\\n PKRU: 55555554\\n Kernel panic - not syncing: Fatal exception\\n Kernel Offset: disabled\\n end Kernel panic - not syncing: Fatal exception\\n\\nTo fix this bug add a wrapper for mlx5e_tx_reporter_dump_sq() which\\nextracts the sq from struct mlx5e_tx_timeout_ctx and set it as the\\nTX-timeout-recovery flow dump callback.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net/mlx5e: envuelve la devoluci\u00f3n de llamada del volcado de tx reporter para extraer el sq. La funci\u00f3n mlx5e_tx_reporter_dump_sq() lanza su argumento void * a la estructura mlx5e_txqsq *, pero en el flujo TX-timeout-recovery el argumento en realidad es de tipo struct mlx5e_tx_timeout_ctx *. mlx5_core 0000: 08: 00.1 enp8s0f1: tx timeout detectado mlx5_core 0000: 08: 00.1 enp8s0f1: tx timeout en cola: 1, sq: 0x11ec, cq: 0x146d, sq consecuencia: 0x0 sq prod: 0x1, usecs desde el \u00faltimo trans: 21565000 : la p\u00e1gina de protecci\u00f3n de pila fue visitada en 0000000093f1a2de (la pila es 00000000b66ea0dc..000000004d932dae) Desbordamiento de pila del kernel (fallo de p\u00e1gina): 0000 [#1] SMP NOPTI CPU: 5 PID: 95 Comm: kworker/u20:1 Contaminado: GW OE 5.13. 0_mlnx #1 Nombre del hardware: PC est\u00e1ndar QEMU (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 01/04/2014 Cola de trabajo: mlx5e mlx5e_tx_timeout_work [mlx5_core] RIP: 0010:mlx5e_tx_reporter_ volcado_sq +0xd3/0x180 [mlx5_core] Seguimiento de llamadas: mlx5e_tx_reporter_dump+0x43/0x1c0 [mlx5_core] devlink_health_do_dump.part.91+0x71/0xd0 devlink_health_report+0x157/0x1b0 mlx5e_reporter_tx_timeout+0xb9/0xf0 [ml x5_core] ? mlx5e_tx_reporter_err_cqe_recover+0x1d0/0x1d0 [mlx5_core] ? mlx5e_health_queue_dump+0xd0/0xd0 [mlx5_core] ? update_load_avg+0x19b/0x550? set_next_entity+0x72/0x80? pick_next_task_fair+0x227/0x340? Finish_task_switch+0xa2/0x280 mlx5e_tx_timeout_work+0x83/0xb0 [mlx5_core] Process_one_work+0x1de/0x3a0 trabajador_thread+0x2d/0x3c0? proceso_one_work+0x3a0/0x3a0 kthread+0x115/0x130 ? kthread_park+0x90/0x90 ret_from_fork+0x1f/0x30 --[ end trace 51ccabea504edaff ]--- RIP: 0010:mlx5e_tx_reporter_dump_sq+0xd3/0x180 PKRU: 55555554 P\u00e1nico del kernel - no sincronizado: excepci\u00f3n fatal Compensaci\u00f3n del kernel: final deshabilitado P\u00e1nico del kernel - no sincronizar : Excepci\u00f3n fatal Para corregir este error, agregue un contenedor para mlx5e_tx_reporter_dump_sq() que extrae el sq de la estructura mlx5e_tx_timeout_ctx y lo configura como devoluci\u00f3n de llamada de volcado de flujo de recuperaci\u00f3n de tiempo de espera de TX.\"}],\"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:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-787\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.7.0\",\"versionEndExcluding\":\"5.10.90\",\"matchCriteriaId\":\"5A19B2DB-FAE4-47E4-AF15-A25633B06323\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11.0\",\"versionEndExcluding\":\"5.15.13\",\"matchCriteriaId\":\"083E0940-932B-447B-A6B2-677DAE27FD04\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/07f13d58a8ecc3baf9a488588fb38c5cb0db484f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/73665165b64a8f3c5b3534009a69be55bb744f05\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/918fc3855a6507a200e9cf22c20be852c0982687\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/07f13d58a8ecc3baf9a488588fb38c5cb0db484f\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/73665165b64a8f3c5b3534009a69be55bb744f05\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/918fc3855a6507a200e9cf22c20be852c0982687\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]}]}}"
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}


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