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CVE-2023-53594

driver core: fix resource leak in device_add()

Medium5.5EPSS 0.15%
Published
Updated
Reserved
Assigned by
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: driver core: fix resource leak in device_add() When calling kobject_add() failed in device_add(), it will call cleanup_glue_dir() to free resource. But in kobject_add(), dev->kobj.parent has been set to NULL. This will cause resource leak. The process is as follows: device_add() get_device_parent() class_dir_create_and_add() kobject_add() //kobject_get() ... dev->kobj.parent = kobj; ... kobject_add() //failed, but set dev->kobj.parent = NULL ... glue_dir = get_glue_dir(dev) //glue_dir = NULL, and goto //"Error" label ... cleanup_glue_dir() //becaues glue_dir is NULL, not call //kobject_put() The preceding problem may cause insmod mac80211_hwsim.ko to failed. sysfs: cannot create duplicate filename '/devices/virtual/mac80211_hwsim' Call Trace: <TASK> dump_stack_lvl+0x8e/0xd1 sysfs_warn_dup.cold+0x1c/0x29 sysfs_create_dir_ns+0x224/0x280 kobject_add_internal+0x2aa/0x880 kobject_add+0x135/0x1a0 get_device_parent+0x3d7/0x590 device_add+0x2aa/0x1cb0 device_create_groups_vargs+0x1eb/0x260 device_create+0xdc/0x110 mac80211_hwsim_new_radio+0x31e/0x4790 [mac80211_hwsim] init_mac80211_hwsim+0x48d/0x1000 [mac80211_hwsim] do_one_initcall+0x10f/0x630 do_init_module+0x19f/0x5e0 load_module+0x64b7/0x6eb0 __do_sys_finit_module+0x140/0x200 do_syscall_64+0x35/0x80 entry_SYSCALL_64_after_hwframe+0x46/0xb0 </TASK> kobject_add_internal failed for mac80211_hwsim with -EEXIST, don't try to register things with the same name in the same directory.

Timeline

  1. ID reserved

    By Linux

  2. Published

  3. · 13 months later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2023-53594, by who scored it
Scored byCVSSScoreVector
NVDNVD · Analyzed3.1Medium5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS (exploitation in 30 days)
0.15% · top 96% of all CVEs (7 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.

Weakness

Affected products

  • Linux · Linux

    • affected cebf8fd16900fdfd58c0028617944f808f97fe50 – < 8d389e363075c2e1deb84a560686ea92123e4b8b
    • affected cebf8fd16900fdfd58c0028617944f808f97fe50 – < d1dbff10c6cd3b43457f3efd3c9c4950009635bf
    • affected cebf8fd16900fdfd58c0028617944f808f97fe50 – < f39d21154db87545d8f0b25d13c326f37cc32239
    • affected cebf8fd16900fdfd58c0028617944f808f97fe50 – < 6977b1a5d67097eaa4d02b0c126c04cc6e8917c0
    • affected e7f6e3c9db4b6f259c89fd05728d024ab32acd71
    • affected a93a63333dbdb182b87e8cc99df8b4474f867acb
    • affected 37de955c11b59050346e530143c20b10b4846527
    • affected 645897231f960590220144b06d1f994b7eb88326
    • affected 3.10.105 – < 3.11
    • affected 3.12.70 – < 3.13
    • affected 4.4.40 – < 4.5
    • affected 4.8.16 – < 4.9

  • Linux · Linux

    • affected 4.9
    • unaffected < 4.9
    • unaffected 5.15.99 – ≤ 5.15.*
    • unaffected 6.1.16 – ≤ 6.1.*
    • unaffected 6.2.3 – ≤ 6.2.*
    • unaffected 6.3 – ≤ *

References (4)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .