ReportizFlowMetrics
Affected Vendors & Products
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Thu, 19 Dec 2024 11:45:00 +0000
| Type | Values Removed | Values Added |
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| CPEs | cpe:2.3:o:linux:linux_kernel:5.16:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:5.16:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:5.16:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:5.16:rc4:*:*:*:*:*:* |
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| Vendors & Products |
Linux
Linux linux Kernel |
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| References |
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| Metrics |
cvssV3_1
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cvssV3_1
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Thu, 19 Dec 2024 11:15:00 +0000
| Type | Values Removed | Values Added |
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| Description | In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx5: Fix releasing unallocated memory in dereg MR flow For the case of IB_MR_TYPE_DM the mr does doesn't have a umem, even though it is a user MR. This causes function mlx5_free_priv_descs() to think that it is a kernel MR, leading to wrongly accessing mr->descs that will get wrong values in the union which leads to attempt to release resources that were not allocated in the first place. For example: DMA-API: mlx5_core 0000:08:00.1: device driver tries to free DMA memory it has not allocated [device address=0x0000000000000000] [size=0 bytes] WARNING: CPU: 8 PID: 1021 at kernel/dma/debug.c:961 check_unmap+0x54f/0x8b0 RIP: 0010:check_unmap+0x54f/0x8b0 Call Trace: debug_dma_unmap_page+0x57/0x60 mlx5_free_priv_descs+0x57/0x70 [mlx5_ib] mlx5_ib_dereg_mr+0x1fb/0x3d0 [mlx5_ib] ib_dereg_mr_user+0x60/0x140 [ib_core] uverbs_destroy_uobject+0x59/0x210 [ib_uverbs] uobj_destroy+0x3f/0x80 [ib_uverbs] ib_uverbs_cmd_verbs+0x435/0xd10 [ib_uverbs] ? uverbs_finalize_object+0x50/0x50 [ib_uverbs] ? lock_acquire+0xc4/0x2e0 ? lock_acquired+0x12/0x380 ? lock_acquire+0xc4/0x2e0 ? lock_acquire+0xc4/0x2e0 ? ib_uverbs_ioctl+0x7c/0x140 [ib_uverbs] ? lock_release+0x28a/0x400 ib_uverbs_ioctl+0xc0/0x140 [ib_uverbs] ? ib_uverbs_ioctl+0x7c/0x140 [ib_uverbs] __x64_sys_ioctl+0x7f/0xb0 do_syscall_64+0x38/0x90 Fix it by reorganizing the dereg flow and mlx5_ib_mr structure: - Move the ib_umem field into the user MRs structure in the union as it's applicable only there. - Function mlx5_ib_dereg_mr() will now call mlx5_free_priv_descs() only in case there isn't udata, which indicates that this isn't a user MR. | This CVE ID has been rejected or withdrawn by its CVE Numbering Authority. |
| Title | RDMA/mlx5: Fix releasing unallocated memory in dereg MR flow | kernel: RDMA/mlx5: Fix releasing unallocated memory in dereg MR flow |
| Metrics |
ssvc
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Thu, 19 Dec 2024 08:15:00 +0000
| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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Wed, 30 Oct 2024 22:00:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Linux
Linux linux Kernel |
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| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:5.16:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:5.16:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:5.16:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:5.16:rc4:*:*:*:*:*:* |
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| Vendors & Products |
Linux
Linux linux Kernel |
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| Metrics |
cvssV3_1
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cvssV3_1
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Thu, 12 Sep 2024 20:30:00 +0000
| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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Wed, 11 Sep 2024 13:30:00 +0000
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| Metrics |
ssvc
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MITRE
Status: REJECTED
Assigner: Linux
Published: 2024-06-19T14:58:03.142Z
Updated: 2024-12-19T10:59:00.685Z
Reserved: 2024-06-19T14:55:32.795Z
Link: CVE-2021-47615
Vulnrichment
Updated:
NVD
Status : Rejected
Published: 2024-06-19T15:15:56.030
Modified: 2024-12-19T11:15:07.277
Link: CVE-2021-47615
Redhat