{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2023-53393", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-53393", "idYear": 2023, "status": "PUBLISHED", "publishedAt": "2025-09-18T13:33:35.133Z", "updatedAt": "2026-05-11T19:44:06.166Z", "importedAt": "2026-10-24T01:57:03.413Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "RDMA/mlx5: Fix mlx5_ib_get_hw_stats when used for device", "summary": "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 >=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 \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.", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "aac4492ef23a176b6f1a41aadb99177eceb1fc06", "status": "affected", "versionType": "git", "lessThan": "8d89870d63758363b07ace5c2df82d6bf865f78b" }, { "version": "aac4492ef23a176b6f1a41aadb99177eceb1fc06", "status": "affected", "versionType": "git", "lessThan": "9a97da4674b890b4c28f5f12beba8c33a9cd2f49" }, { "version": "aac4492ef23a176b6f1a41aadb99177eceb1fc06", "status": "affected", "versionType": "git", "lessThan": "e597b003c736217b0c99ccf1b240c25009105238" }, { "version": "aac4492ef23a176b6f1a41aadb99177eceb1fc06", "status": "affected", "versionType": "git", "lessThan": "38b50aa44495d5eb4218f0b82fc2da76505cec53" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "4.16", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "4.16" }, { "version": "5.15.87", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "6.0.19", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.0.*" }, { "version": "6.1.5", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.2", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }