CVE-2023-53393 (GCVE-0-2023-53393)
Vulnerability from cvelistv5 – Published: 2025-09-18 13:33 – Updated: 2026-05-11 19:44
VLAI
EPSS
VEX
Title
RDMA/mlx5: Fix mlx5_ib_get_hw_stats when used for device
Summary
In the Linux kernel, the following vulnerability has been resolved:
RDMA/mlx5: Fix mlx5_ib_get_hw_stats when used for device
Currently, when mlx5_ib_get_hw_stats() is used for device (port_num = 0),
there is a special handling in order to use the correct counters, but,
port_num is being passed down the stack without any change. Also, some
functions assume that port_num >=1. As a result, the following oops can
occur.
BUG: unable to handle page fault for address: ffff89510294f1a8
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD 0 P4D 0
Oops: 0002 [#1] SMP
CPU: 8 PID: 1382 Comm: devlink Tainted: G W 6.1.0-rc4_for_upstream_base_2022_11_10_16_12 #1
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
RIP: 0010:_raw_spin_lock+0xc/0x20
Call Trace:
<TASK>
mlx5_ib_get_native_port_mdev+0x73/0xe0 [mlx5_ib]
do_get_hw_stats.constprop.0+0x109/0x160 [mlx5_ib]
mlx5_ib_get_hw_stats+0xad/0x180 [mlx5_ib]
ib_setup_device_attrs+0xf0/0x290 [ib_core]
ib_register_device+0x3bb/0x510 [ib_core]
? atomic_notifier_chain_register+0x67/0x80
__mlx5_ib_add+0x2b/0x80 [mlx5_ib]
mlx5r_probe+0xb8/0x150 [mlx5_ib]
? auxiliary_match_id+0x6a/0x90
auxiliary_bus_probe+0x3c/0x70
? driver_sysfs_add+0x6b/0x90
really_probe+0xcd/0x380
__driver_probe_device+0x80/0x170
driver_probe_device+0x1e/0x90
__device_attach_driver+0x7d/0x100
? driver_allows_async_probing+0x60/0x60
? driver_allows_async_probing+0x60/0x60
bus_for_each_drv+0x7b/0xc0
__device_attach+0xbc/0x200
bus_probe_device+0x87/0xa0
device_add+0x404/0x940
? dev_set_name+0x53/0x70
__auxiliary_device_add+0x43/0x60
add_adev+0x99/0xe0 [mlx5_core]
mlx5_attach_device+0xc8/0x120 [mlx5_core]
mlx5_load_one_devl_locked+0xb2/0xe0 [mlx5_core]
devlink_reload+0x133/0x250
devlink_nl_cmd_reload+0x480/0x570
? devlink_nl_pre_doit+0x44/0x2b0
genl_family_rcv_msg_doit.isra.0+0xc2/0x110
genl_rcv_msg+0x180/0x2b0
? devlink_nl_cmd_region_read_dumpit+0x540/0x540
? devlink_reload+0x250/0x250
? devlink_put+0x50/0x50
? genl_family_rcv_msg_doit.isra.0+0x110/0x110
netlink_rcv_skb+0x54/0x100
genl_rcv+0x24/0x40
netlink_unicast+0x1f6/0x2c0
netlink_sendmsg+0x237/0x490
sock_sendmsg+0x33/0x40
__sys_sendto+0x103/0x160
? handle_mm_fault+0x10e/0x290
? do_user_addr_fault+0x1c0/0x5f0
__x64_sys_sendto+0x25/0x30
do_syscall_64+0x3d/0x90
entry_SYSCALL_64_after_hwframe+0x46/0xb0
Fix it by setting port_num to 1 in order to get device status and remove
unused variable.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-14 18:59 UTC
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
aac4492ef23a176b6f1a41aadb99177eceb1fc06 , < 8d89870d63758363b07ace5c2df82d6bf865f78b
(git)
Affected: aac4492ef23a176b6f1a41aadb99177eceb1fc06 , < 9a97da4674b890b4c28f5f12beba8c33a9cd2f49 (git) Affected: aac4492ef23a176b6f1a41aadb99177eceb1fc06 , < e597b003c736217b0c99ccf1b240c25009105238 (git) Affected: aac4492ef23a176b6f1a41aadb99177eceb1fc06 , < 38b50aa44495d5eb4218f0b82fc2da76505cec53 (git) |
guessed | |
| Linux | Linux |
Affected:
4.16
Unaffected: 0 , < 4.16 (semver) Unaffected: 5.15.87 , ≤ 5.15.* (semver) Unaffected: 6.0.19 , ≤ 6.0.* (semver) Unaffected: 6.1.5 , ≤ 6.1.* (semver) Unaffected: 6.2 , ≤ * (original_commit_for_fix) |
guessed |
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/mlx5: Fix mlx5_ib_get_hw_stats when used for device\n\nCurrently, when mlx5_ib_get_hw_stats() is used for device (port_num = 0),\nthere is a special handling in order to use the correct counters, but,\nport_num is being passed down the stack without any change. Also, some\nfunctions assume that port_num \u003e=1. As a result, the following oops can\noccur.\n\n BUG: unable to handle page fault for address: ffff89510294f1a8\n #PF: supervisor write access in kernel mode\n #PF: error_code(0x0002) - not-present page\n PGD 0 P4D 0\n Oops: 0002 [#1] SMP\n CPU: 8 PID: 1382 Comm: devlink Tainted: G W 6.1.0-rc4_for_upstream_base_2022_11_10_16_12 #1\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\n RIP: 0010:_raw_spin_lock+0xc/0x20\n Call Trace:\n \u003cTASK\u003e\n mlx5_ib_get_native_port_mdev+0x73/0xe0 [mlx5_ib]\n do_get_hw_stats.constprop.0+0x109/0x160 [mlx5_ib]\n mlx5_ib_get_hw_stats+0xad/0x180 [mlx5_ib]\n ib_setup_device_attrs+0xf0/0x290 [ib_core]\n ib_register_device+0x3bb/0x510 [ib_core]\n ? atomic_notifier_chain_register+0x67/0x80\n __mlx5_ib_add+0x2b/0x80 [mlx5_ib]\n mlx5r_probe+0xb8/0x150 [mlx5_ib]\n ? auxiliary_match_id+0x6a/0x90\n auxiliary_bus_probe+0x3c/0x70\n ? driver_sysfs_add+0x6b/0x90\n really_probe+0xcd/0x380\n __driver_probe_device+0x80/0x170\n driver_probe_device+0x1e/0x90\n __device_attach_driver+0x7d/0x100\n ? driver_allows_async_probing+0x60/0x60\n ? driver_allows_async_probing+0x60/0x60\n bus_for_each_drv+0x7b/0xc0\n __device_attach+0xbc/0x200\n bus_probe_device+0x87/0xa0\n device_add+0x404/0x940\n ? dev_set_name+0x53/0x70\n __auxiliary_device_add+0x43/0x60\n add_adev+0x99/0xe0 [mlx5_core]\n mlx5_attach_device+0xc8/0x120 [mlx5_core]\n mlx5_load_one_devl_locked+0xb2/0xe0 [mlx5_core]\n devlink_reload+0x133/0x250\n devlink_nl_cmd_reload+0x480/0x570\n ? devlink_nl_pre_doit+0x44/0x2b0\n genl_family_rcv_msg_doit.isra.0+0xc2/0x110\n genl_rcv_msg+0x180/0x2b0\n ? devlink_nl_cmd_region_read_dumpit+0x540/0x540\n ? devlink_reload+0x250/0x250\n ? devlink_put+0x50/0x50\n ? genl_family_rcv_msg_doit.isra.0+0x110/0x110\n netlink_rcv_skb+0x54/0x100\n genl_rcv+0x24/0x40\n netlink_unicast+0x1f6/0x2c0\n netlink_sendmsg+0x237/0x490\n sock_sendmsg+0x33/0x40\n __sys_sendto+0x103/0x160\n ? handle_mm_fault+0x10e/0x290\n ? do_user_addr_fault+0x1c0/0x5f0\n __x64_sys_sendto+0x25/0x30\n do_syscall_64+0x3d/0x90\n entry_SYSCALL_64_after_hwframe+0x46/0xb0\n\nFix it by setting port_num to 1 in order to get device status and remove\nunused variable."
}
],
"id": "CVE-2023-53393",
"lastModified": "2026-06-17T06:45:11.927",
"metrics": {
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"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6,
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2023-53393",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-01-14T18:59:26.844938Z",
"version": "2.0.3"
}
}
]
},
"published": "2025-09-18T14:15:42.463",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/38b50aa44495d5eb4218f0b82fc2da76505cec53"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
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],
"url": "https://git.kernel.org/stable/c/8d89870d63758363b07ace5c2df82d6bf865f78b"
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{
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"tags": [
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"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/e597b003c736217b0c99ccf1b240c25009105238"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Modified",
"weaknesses": [
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"description": [
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"lang": "en",
"value": "NVD-CWE-noinfo"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
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"current_release_date": "2026-06-29T22:22:28+00:00",
"cve": "CVE-2023-53393",
"id": "CVE-2023-53393",
"initial_release_date": "2023-01-01T00:00:00+00:00",
"product_status:fixed": "706",
"product_status:known_affected": "38",
"product_status:known_not_affected": "118",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: RDMA/mlx5: Fix mlx5_ib_get_hw_stats when used for device",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-53393.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-08-31T00:59:08Z",
"cve": "CVE-2023-53393",
"id": "CVE-2023-53393",
"initial_release_date": "2025-09-18T23:38:16Z",
"product_status:known_affected": "446",
"product_status:known_not_affected": "235",
"product_status:recommended": "276",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2023-53393",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-53393.json",
"version": "23"
},
"vulnrichment": {
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"adp": [
{
"metrics": [
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"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
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"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2023-53393",
"options": [
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},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-01-14T18:59:26.844938Z",
"version": "2.0.3"
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"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "CWE-noinfo Not enough information",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-01-14T18:59:22.448Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/infiniband/hw/mlx5/counters.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "8d89870d63758363b07ace5c2df82d6bf865f78b",
"status": "affected",
"version": "aac4492ef23a176b6f1a41aadb99177eceb1fc06",
"versionType": "git"
},
{
"lessThan": "9a97da4674b890b4c28f5f12beba8c33a9cd2f49",
"status": "affected",
"version": "aac4492ef23a176b6f1a41aadb99177eceb1fc06",
"versionType": "git"
},
{
"lessThan": "e597b003c736217b0c99ccf1b240c25009105238",
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"versionType": "git"
},
{
"lessThan": "38b50aa44495d5eb4218f0b82fc2da76505cec53",
"status": "affected",
"version": "aac4492ef23a176b6f1a41aadb99177eceb1fc06",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
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],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
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"status": "affected",
"version": "4.16"
},
{
"lessThan": "4.16",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.87",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.0.*",
"status": "unaffected",
"version": "6.0.19",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.5",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.2",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
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"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.87",
"versionStartIncluding": "4.16",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.0.19",
"versionStartIncluding": "4.16",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/mlx5: Fix mlx5_ib_get_hw_stats when used for device\n\nCurrently, when mlx5_ib_get_hw_stats() is used for device (port_num = 0),\nthere is a special handling in order to use the correct counters, but,\nport_num is being passed down the stack without any change. Also, some\nfunctions assume that port_num \u003e=1. As a result, the following oops can\noccur.\n\n BUG: unable to handle page fault for address: ffff89510294f1a8\n #PF: supervisor write access in kernel mode\n #PF: error_code(0x0002) - not-present page\n PGD 0 P4D 0\n Oops: 0002 [#1] SMP\n CPU: 8 PID: 1382 Comm: devlink Tainted: G W 6.1.0-rc4_for_upstream_base_2022_11_10_16_12 #1\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\n RIP: 0010:_raw_spin_lock+0xc/0x20\n Call Trace:\n \u003cTASK\u003e\n mlx5_ib_get_native_port_mdev+0x73/0xe0 [mlx5_ib]\n do_get_hw_stats.constprop.0+0x109/0x160 [mlx5_ib]\n mlx5_ib_get_hw_stats+0xad/0x180 [mlx5_ib]\n ib_setup_device_attrs+0xf0/0x290 [ib_core]\n ib_register_device+0x3bb/0x510 [ib_core]\n ? atomic_notifier_chain_register+0x67/0x80\n __mlx5_ib_add+0x2b/0x80 [mlx5_ib]\n mlx5r_probe+0xb8/0x150 [mlx5_ib]\n ? auxiliary_match_id+0x6a/0x90\n auxiliary_bus_probe+0x3c/0x70\n ? driver_sysfs_add+0x6b/0x90\n really_probe+0xcd/0x380\n __driver_probe_device+0x80/0x170\n driver_probe_device+0x1e/0x90\n __device_attach_driver+0x7d/0x100\n ? driver_allows_async_probing+0x60/0x60\n ? driver_allows_async_probing+0x60/0x60\n bus_for_each_drv+0x7b/0xc0\n __device_attach+0xbc/0x200\n bus_probe_device+0x87/0xa0\n device_add+0x404/0x940\n ? dev_set_name+0x53/0x70\n __auxiliary_device_add+0x43/0x60\n add_adev+0x99/0xe0 [mlx5_core]\n mlx5_attach_device+0xc8/0x120 [mlx5_core]\n mlx5_load_one_devl_locked+0xb2/0xe0 [mlx5_core]\n devlink_reload+0x133/0x250\n devlink_nl_cmd_reload+0x480/0x570\n ? devlink_nl_pre_doit+0x44/0x2b0\n genl_family_rcv_msg_doit.isra.0+0xc2/0x110\n genl_rcv_msg+0x180/0x2b0\n ? devlink_nl_cmd_region_read_dumpit+0x540/0x540\n ? devlink_reload+0x250/0x250\n ? devlink_put+0x50/0x50\n ? genl_family_rcv_msg_doit.isra.0+0x110/0x110\n netlink_rcv_skb+0x54/0x100\n genl_rcv+0x24/0x40\n netlink_unicast+0x1f6/0x2c0\n netlink_sendmsg+0x237/0x490\n sock_sendmsg+0x33/0x40\n __sys_sendto+0x103/0x160\n ? handle_mm_fault+0x10e/0x290\n ? do_user_addr_fault+0x1c0/0x5f0\n __x64_sys_sendto+0x25/0x30\n do_syscall_64+0x3d/0x90\n entry_SYSCALL_64_after_hwframe+0x46/0xb0\n\nFix it by setting port_num to 1 in order to get device status and remove\nunused variable."
}
],
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"dateUpdated": "2026-05-11T19:44:06.166Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
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"url": "https://git.kernel.org/stable/c/8d89870d63758363b07ace5c2df82d6bf865f78b"
},
{
"url": "https://git.kernel.org/stable/c/9a97da4674b890b4c28f5f12beba8c33a9cd2f49"
},
{
"url": "https://git.kernel.org/stable/c/e597b003c736217b0c99ccf1b240c25009105238"
},
{
"url": "https://git.kernel.org/stable/c/38b50aa44495d5eb4218f0b82fc2da76505cec53"
}
],
"title": "RDMA/mlx5: Fix mlx5_ib_get_hw_stats when used for device",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2023-53393",
"datePublished": "2025-09-18T13:33:35.133Z",
"dateReserved": "2025-09-17T14:54:09.737Z",
"dateUpdated": "2026-05-11T19:44:06.166Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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