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CVE-2023-53800— ubi: Fix use-after-free when volume resizing failed

EPSS 0.03% · P9
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I. Basic Information for CVE-2023-53800

Vulnerability Information
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Vulnerability Title
ubi: Fix use-after-free when volume resizing failed
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ubi: Fix use-after-free when volume resizing failed There is an use-after-free problem reported by KASAN: ================================================================== BUG: KASAN: use-after-free in ubi_eba_copy_table+0x11f/0x1c0 [ubi] Read of size 8 at addr ffff888101eec008 by task ubirsvol/4735 CPU: 2 PID: 4735 Comm: ubirsvol Not tainted 6.1.0-rc1-00003-g84fa3304a7fc-dirty #14 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-1.fc33 04/01/2014 Call Trace: <TASK> dump_stack_lvl+0x34/0x44 print_report+0x171/0x472 kasan_report+0xad/0x130 ubi_eba_copy_table+0x11f/0x1c0 [ubi] ubi_resize_volume+0x4f9/0xbc0 [ubi] ubi_cdev_ioctl+0x701/0x1850 [ubi] __x64_sys_ioctl+0x11d/0x170 do_syscall_64+0x35/0x80 entry_SYSCALL_64_after_hwframe+0x46/0xb0 </TASK> When ubi_change_vtbl_record() returns an error in ubi_resize_volume(), "new_eba_tbl" will be freed on error handing path, but it is holded by "vol->eba_tbl" in ubi_eba_replace_table(). It means that the liftcycle of "vol->eba_tbl" and "vol" are different, so when resizing volume in next time, it causing an use-after-free fault. Fix it by not freeing "new_eba_tbl" after it replaced in ubi_eba_replace_table(), while will be freed in next volume resizing.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于ubi_resize_volume失败时未正确处理内存释放，可能导致释放后重用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
LinuxLinux 801c135ce73d5df1caf3eca35b66a10824ae0707 ~ bf9875aa7f7d624a8c084425b14bf7e5907ebc30 -
LinuxLinux 2.6.22 -

II. Public POCs for CVE-2023-53800

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III. Intelligence Information for CVE-2023-53800

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Same Patch Batch · Linux · 2025-12-09 · 152 CVEs total

CVE-2023-53827Bluetooth: L2CAP: Fix use-after-free in l2cap_disconnect_{req,rsp}
CVE-2023-53846f2fs: fix to do sanity check on direct node in truncate_dnode()
CVE-2023-53845nilfs2: fix infinite loop in nilfs_mdt_get_block()
CVE-2023-53844drm/ttm: Don't leak a resource on swapout move error
CVE-2023-53843net: openvswitch: reject negative ifindex
CVE-2023-53842ASoC: codecs: wcd-mbhc-v2: fix resource leaks on component remove
CVE-2023-53841devlink: report devlink_port_type_warn source device
CVE-2023-53840usb: early: xhci-dbc: Fix a potential out-of-bound memory access
CVE-2023-53839dccp: fix data-race around dp->dccps_mss_cache
CVE-2023-53838f2fs: synchronize atomic write aborts
CVE-2023-53837drm/msm: fix NULL-deref on snapshot tear down
CVE-2023-53836bpf, sockmap: Fix skb refcnt race after locking changes
CVE-2023-53834iio: adc: ina2xx: avoid NULL pointer dereference on OF device match
CVE-2023-53833drm/i915: Fix NULL ptr deref by checking new_crtc_state
CVE-2023-53832md/raid10: fix null-ptr-deref in raid10_sync_request
CVE-2023-53831net: read sk->sk_family once in sk_mc_loop()
CVE-2023-53830platform/x86: think-lmi: Fix memory leak when showing current settings
CVE-2023-53829f2fs: flush inode if atomic file is aborted
CVE-2023-53828Bluetooth: hci_sync: Avoid use-after-free in dbg for hci_add_adv_monitor()
CVE-2022-50675arm64: mte: Avoid setting PG_mte_tagged if no tags cleared or restored

Showing top 20 of 152 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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