CVE-2023-53393 (GCVE-0-2023-53393)

Vulnerability from cvelistv5 – Published: 2025-09-18 13:33 – Updated: 2026-01-14 19:03
VLAI?
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.
Assigner
Impacted products
Vendor Product Version
Linux Linux Affected: aac4492ef23a176b6f1a41aadb99177eceb1fc06 , < 8d89870d63758363b07ace5c2df82d6bf865f78b (git)
Affected: aac4492ef23a176b6f1a41aadb99177eceb1fc06 , < 9a97da4674b890b4c28f5f12beba8c33a9cd2f49 (git)
Affected: aac4492ef23a176b6f1a41aadb99177eceb1fc06 , < e597b003c736217b0c99ccf1b240c25009105238 (git)
Affected: aac4492ef23a176b6f1a41aadb99177eceb1fc06 , < 38b50aa44495d5eb4218f0b82fc2da76505cec53 (git)
Create a notification for this product.
    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)
Create a notification for this product.
Show details on NVD website

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    "dateReserved": "2025-09-17T14:54:09.737Z",
    "dateUpdated": "2026-01-14T19:03:05.762Z",
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      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.5, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-53393\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-01-14T18:59:26.844938Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"description\": \"CWE-noinfo Not enough information\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-01-14T18:59:22.448Z\"}}], \"cna\": {\"title\": \"RDMA/mlx5: Fix mlx5_ib_get_hw_stats when used for device\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"aac4492ef23a176b6f1a41aadb99177eceb1fc06\", \"lessThan\": \"8d89870d63758363b07ace5c2df82d6bf865f78b\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"aac4492ef23a176b6f1a41aadb99177eceb1fc06\", \"lessThan\": \"9a97da4674b890b4c28f5f12beba8c33a9cd2f49\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"aac4492ef23a176b6f1a41aadb99177eceb1fc06\", \"lessThan\": \"e597b003c736217b0c99ccf1b240c25009105238\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"aac4492ef23a176b6f1a41aadb99177eceb1fc06\", \"lessThan\": \"38b50aa44495d5eb4218f0b82fc2da76505cec53\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/infiniband/hw/mlx5/counters.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.16\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"4.16\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.15.87\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.0.19\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.0.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.5\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.2\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/infiniband/hw/mlx5/counters.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"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\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"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.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.87\", \"versionStartIncluding\": \"4.16\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.0.19\", \"versionStartIncluding\": \"4.16\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.5\", \"versionStartIncluding\": \"4.16\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.2\", \"versionStartIncluding\": \"4.16\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-09-18T13:33:35.133Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-53393\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-01-14T19:03:05.762Z\", \"dateReserved\": \"2025-09-17T14:54:09.737Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-09-18T13:33:35.133Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Sightings

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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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