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CVE-2023-52566— nilfs2: fix potential use after free in nilfs_gccache_submit_read_data()

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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，该漏洞源于内存释放后重用。

AI Predicted 4.4 Difficulty: Theoretical EPSS 0.22% · P12

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux a3d93f709e893187d301aa5458b2248db9f22bd1< fb1084e63ee56958b0a56e17a50a4fd86445b9c1 affected
a3d93f709e893187d301aa5458b2248db9f22bd1< bb61224f6abc8e71bfdf06d7c984e23460875f5b affected
a3d93f709e893187d301aa5458b2248db9f22bd1< 193b5a1c6c67c36b430989dc063fe7ea4e200a33 affected
a3d93f709e893187d301aa5458b2248db9f22bd1< 7130a87ca32396eb9bf48b71a2d42259ae44c6c7 affected
a3d93f709e893187d301aa5458b2248db9f22bd1< 3936e8714907cd55e37c7cc50e50229e4a9042e8 affected
a3d93f709e893187d301aa5458b2248db9f22bd1< 980663f1d189eedafd18d80053d9cf3e2ceb5c8c affected
a3d93f709e893187d301aa5458b2248db9f22bd1< 28df4646ad8b433340772edc90ca709cdefc53e2 affected
a3d93f709e893187d301aa5458b2248db9f22bd1< 7ee29facd8a9c5a26079148e36bcf07141b3a6bc affected
… +10 more rows
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I. Basic Information for CVE-2023-52566

Vulnerability Information
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Vulnerability Title
nilfs2: fix potential use after free in nilfs_gccache_submit_read_data()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix potential use after free in nilfs_gccache_submit_read_data() In nilfs_gccache_submit_read_data(), brelse(bh) is called to drop the reference count of bh when the call to nilfs_dat_translate() fails. If the reference count hits 0 and its owner page gets unlocked, bh may be freed. However, bh->b_page is dereferenced to put the page after that, which may result in a use-after-free bug. This patch moves the release operation after unlocking and putting the page. NOTE: The function in question is only called in GC, and in combination with current userland tools, address translation using DAT does not occur in that function, so the code path that causes this issue will not be executed. However, it is possible to run that code path by intentionally modifying the userland GC library or by calling the GC ioctl directly. [konishi.ryusuke@gmail.com: NOTE added to the commit log]
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
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，该漏洞源于内存释放后重用。
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

Vendor Product Affected Versions CPE Subscribe
Linux Linux a3d93f709e893187d301aa5458b2248db9f22bd1 ~ fb1084e63ee56958b0a56e17a50a4fd86445b9c1 -
Linux Linux 2.6.30 -

II. Public POCs for CVE-2023-52566

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III. Intelligence Information for CVE-2023-52566

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Other References for CVE-2023-52566 (7)

Same Patch Batch · Linux · 2024-03-02 · 57 CVEs total

CVE-2023-52515 9.8 CRITICAL RDMA/srp: Do not call scsi_done() from srp_abort()
CVE-2023-52530 8.8 HIGH wifi: mac80211: fix potential key use-after-free
CVE-2023-52522 8.8 HIGH net: fix possible store tearing in neigh_periodic_work()
CVE-2023-52502 8.8 HIGH net: nfc: fix races in nfc_llcp_sock_get() and nfc_llcp_sock_get_sn()
CVE-2024-26621 8.2 HIGH mm: huge_memory: don't force huge page alignment on 32 bit
CVE-2023-52523 7.8 HIGH bpf, sockmap: Reject sk_msg egress redirects to non-TCP sockets
CVE-2023-52509 7.8 HIGH ravb: Fix use-after-free issue in ravb_tx_timeout_work()
CVE-2023-52572 7.8 HIGH cifs: Fix UAF in cifs_demultiplex_thread()
CVE-2023-52574 7.8 HIGH team: fix null-ptr-deref when team device type is changed
CVE-2023-52517 7.8 HIGH spi: sun6i: fix race between DMA RX transfer completion and RX FIFO drain
CVE-2023-52503 7.8 HIGH tee: amdtee: fix use-after-free vulnerability in amdtee_close_session
CVE-2023-52513 7.5 HIGH RDMA/siw: Fix connection failure handling
CVE-2023-52565 7.1 HIGH media: uvcvideo: Fix OOB read
CVE-2023-52559 iommu/vt-d: Avoid memory allocation in iommu_suspend()
CVE-2023-52561 arm64: dts: qcom: sdm845-db845c: Mark cont splash memory region as reserved
CVE-2023-52563 drm/meson: fix memory leak on ->hpd_notify callback
CVE-2023-52564 Revert "tty: n_gsm: fix UAF in gsm_cleanup_mux"
CVE-2023-52582 netfs: Only call folio_start_fscache() one time for each folio
CVE-2023-52518 Bluetooth: hci_codec: Fix leaking content of local_codecs
CVE-2023-52560 mm/damon/vaddr-test: fix memory leak in damon_do_test_apply_three_regions()

Showing top 20 of 57 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-52566

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