github - ghsa-fxr5-32j9-7wfr

ghsa-fxr5-32j9-7wfr

Vulnerability from github

Published

2024-02-28 09:30

Modified

2024-02-28 09:30

Details

In the Linux kernel, the following vulnerability has been resolved:

nvmet-rdma: Fix NULL deref when SEND is completed with error

When running some traffic and taking down the link on peer, a retry counter exceeded error is received. This leads to nvmet_rdma_error_comp which tried accessing the cq_context to obtain the queue. The cq_context is no longer valid after the fix to use shared CQ mechanism and should be obtained similar to how it is obtained in other functions from the wc->qp.

[ 905.786331] nvmet_rdma: SEND for CQE 0x00000000e3337f90 failed with status transport retry counter exceeded (12). [ 905.832048] BUG: unable to handle kernel NULL pointer dereference at 0000000000000048 [ 905.839919] PGD 0 P4D 0 [ 905.842464] Oops: 0000 1 SMP NOPTI [ 905.846144] CPU: 13 PID: 1557 Comm: kworker/13:1H Kdump: loaded Tainted: G OE --------- - - 4.18.0-304.el8.x86_64 #1 [ 905.872135] RIP: 0010:nvmet_rdma_error_comp+0x5/0x1b [nvmet_rdma] [ 905.878259] Code: 19 4f c0 e8 89 b3 a5 f6 e9 5b e0 ff ff 0f b7 75 14 4c 89 ea 48 c7 c7 08 1a 4f c0 e8 71 b3 a5 f6 e9 4b e0 ff ff 0f 1f 44 00 00 <48> 8b 47 48 48 85 c0 74 08 48 89 c7 e9 98 bf 49 00 e9 c3 e3 ff ff [ 905.897135] RSP: 0018:ffffab601c45fe28 EFLAGS: 00010246 [ 905.902387] RAX: 0000000000000065 RBX: ffff9e729ea2f800 RCX: 0000000000000000 [ 905.909558] RDX: 0000000000000000 RSI: ffff9e72df9567c8 RDI: 0000000000000000 [ 905.916731] RBP: ffff9e729ea2b400 R08: 000000000000074d R09: 0000000000000074 [ 905.923903] R10: 0000000000000000 R11: ffffab601c45fcc0 R12: 0000000000000010 [ 905.931074] R13: 0000000000000000 R14: 0000000000000010 R15: ffff9e729ea2f400 [ 905.938247] FS: 0000000000000000(0000) GS:ffff9e72df940000(0000) knlGS:0000000000000000 [ 905.938249] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 905.950067] nvmet_rdma: SEND for CQE 0x00000000c7356cca failed with status transport retry counter exceeded (12). [ 905.961855] CR2: 0000000000000048 CR3: 000000678d010004 CR4: 00000000007706e0 [ 905.961855] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 905.961856] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 905.961857] PKRU: 55555554 [ 906.010315] Call Trace: [ 906.012778] __ib_process_cq+0x89/0x170 [ib_core] [ 906.017509] ib_cq_poll_work+0x26/0x80 [ib_core] [ 906.022152] process_one_work+0x1a7/0x360 [ 906.026182] ? create_worker+0x1a0/0x1a0 [ 906.030123] worker_thread+0x30/0x390 [ 906.033802] ? create_worker+0x1a0/0x1a0 [ 906.037744] kthread+0x116/0x130 [ 906.040988] ? kthread_flush_work_fn+0x10/0x10 [ 906.045456] ret_from_fork+0x1f/0x40

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{
  "affected": [],
  "aliases": [
    "CVE-2021-46983"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-02-28T09:15:37Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvmet-rdma: Fix NULL deref when SEND is completed with error\n\nWhen running some traffic and taking down the link on peer, a\nretry counter exceeded error is received. This leads to\nnvmet_rdma_error_comp which tried accessing the cq_context to\nobtain the queue. The cq_context is no longer valid after the\nfix to use shared CQ mechanism and should be obtained similar\nto how it is obtained in other functions from the wc-\u003eqp.\n\n[ 905.786331] nvmet_rdma: SEND for CQE 0x00000000e3337f90 failed with status transport retry counter exceeded (12).\n[ 905.832048] BUG: unable to handle kernel NULL pointer dereference at 0000000000000048\n[ 905.839919] PGD 0 P4D 0\n[ 905.842464] Oops: 0000 1 SMP NOPTI\n[ 905.846144] CPU: 13 PID: 1557 Comm: kworker/13:1H Kdump: loaded Tainted: G OE --------- - - 4.18.0-304.el8.x86_64 #1\n[ 905.872135] RIP: 0010:nvmet_rdma_error_comp+0x5/0x1b [nvmet_rdma]\n[ 905.878259] Code: 19 4f c0 e8 89 b3 a5 f6 e9 5b e0 ff ff 0f b7 75 14 4c 89 ea 48 c7 c7 08 1a 4f c0 e8 71 b3 a5 f6 e9 4b e0 ff ff 0f 1f 44 00 00 \u003c48\u003e 8b 47 48 48 85 c0 74 08 48 89 c7 e9 98 bf 49 00 e9 c3 e3 ff ff\n[ 905.897135] RSP: 0018:ffffab601c45fe28 EFLAGS: 00010246\n[ 905.902387] RAX: 0000000000000065 RBX: ffff9e729ea2f800 RCX: 0000000000000000\n[ 905.909558] RDX: 0000000000000000 RSI: ffff9e72df9567c8 RDI: 0000000000000000\n[ 905.916731] RBP: ffff9e729ea2b400 R08: 000000000000074d R09: 0000000000000074\n[ 905.923903] R10: 0000000000000000 R11: ffffab601c45fcc0 R12: 0000000000000010\n[ 905.931074] R13: 0000000000000000 R14: 0000000000000010 R15: ffff9e729ea2f400\n[ 905.938247] FS: 0000000000000000(0000) GS:ffff9e72df940000(0000) knlGS:0000000000000000\n[ 905.938249] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 905.950067] nvmet_rdma: SEND for CQE 0x00000000c7356cca failed with status transport retry counter exceeded (12).\n[ 905.961855] CR2: 0000000000000048 CR3: 000000678d010004 CR4: 00000000007706e0\n[ 905.961855] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[ 905.961856] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[ 905.961857] PKRU: 55555554\n[ 906.010315] Call Trace:\n[ 906.012778] __ib_process_cq+0x89/0x170 [ib_core]\n[ 906.017509] ib_cq_poll_work+0x26/0x80 [ib_core]\n[ 906.022152] process_one_work+0x1a7/0x360\n[ 906.026182] ? create_worker+0x1a0/0x1a0\n[ 906.030123] worker_thread+0x30/0x390\n[ 906.033802] ? create_worker+0x1a0/0x1a0\n[ 906.037744] kthread+0x116/0x130\n[ 906.040988] ? kthread_flush_work_fn+0x10/0x10\n[ 906.045456] ret_from_fork+0x1f/0x40",
  "id": "GHSA-fxr5-32j9-7wfr",
  "modified": "2024-02-28T09:30:37Z",
  "published": "2024-02-28T09:30:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-46983"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/17fb6dfa5162b89ecfa07df891a53afec321abe8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5bdb34466ad8370546dfa0497594fb1d6f2fed90"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/64f3410c7bfc389b1a58611d0799f4a36ce4b6b5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8cc365f9559b86802afc0208389f5c8d46b4ad61"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

cve-2021-46983

Vulnerability from cvelistv5

Published

2024-02-28 08:13

Modified

2024-11-04 11:57

Severity ?

Summary

nvmet-rdma: Fix NULL deref when SEND is completed with error

References

▼	URL	Tags
	https://git.kernel.org/stable/c/64f3410c7bfc389b1a58611d0799f4a36ce4b6b5
	https://git.kernel.org/stable/c/17fb6dfa5162b89ecfa07df891a53afec321abe8
	https://git.kernel.org/stable/c/5bdb34466ad8370546dfa0497594fb1d6f2fed90
	https://git.kernel.org/stable/c/8cc365f9559b86802afc0208389f5c8d46b4ad61

Impacted products

▼	Vendor	Product
	Linux	Linux
	Linux	Linux

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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