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CVE-2024-53155— ocfs2: fix uninitialized value in ocfs2_file_read_iter()

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ocfs2文件系统中ocfs2_file_read_iter函数未初始化值。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.24% · P14

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 20

VendorProduct Version RangeStatus
Linux Linux 7cdfc3a1c3971c9125c317cb8c2525745851798e< 6c8f8d1e595dabd5389817f6d798cc8bd95c40ab affected
7cdfc3a1c3971c9125c317cb8c2525745851798e< f4078ef38d3163e6be47403a619558b19c4bfccd affected
7cdfc3a1c3971c9125c317cb8c2525745851798e< 66b7ddd1804e2c4216dd7ead8eeb746cdbb3b62f affected
7cdfc3a1c3971c9125c317cb8c2525745851798e< 8c966150d5abff58c3c2bdb9a6e63fd773782905 affected
7cdfc3a1c3971c9125c317cb8c2525745851798e< 83f8713a0ef1d55d6a287bcfadcaab8245ac5098 affected
7cdfc3a1c3971c9125c317cb8c2525745851798e< 8e0de82ed18ba0e71f817adbd81317fd1032ca5a affected
7cdfc3a1c3971c9125c317cb8c2525745851798e< 366c933c2ab34dd6551acc03b4872726b7605143 affected
7cdfc3a1c3971c9125c317cb8c2525745851798e< dc78efe556fed162d48736ef24066f42e463e27c affected
… +12 more rows
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I. Basic Information for CVE-2024-53155

Vulnerability Information
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Vulnerability Title
ocfs2: fix uninitialized value in ocfs2_file_read_iter()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix uninitialized value in ocfs2_file_read_iter() Syzbot has reported the following KMSAN splat: BUG: KMSAN: uninit-value in ocfs2_file_read_iter+0x9a4/0xf80 ocfs2_file_read_iter+0x9a4/0xf80 __io_read+0x8d4/0x20f0 io_read+0x3e/0xf0 io_issue_sqe+0x42b/0x22c0 io_wq_submit_work+0xaf9/0xdc0 io_worker_handle_work+0xd13/0x2110 io_wq_worker+0x447/0x1410 ret_from_fork+0x6f/0x90 ret_from_fork_asm+0x1a/0x30 Uninit was created at: __alloc_pages_noprof+0x9a7/0xe00 alloc_pages_mpol_noprof+0x299/0x990 alloc_pages_noprof+0x1bf/0x1e0 allocate_slab+0x33a/0x1250 ___slab_alloc+0x12ef/0x35e0 kmem_cache_alloc_bulk_noprof+0x486/0x1330 __io_alloc_req_refill+0x84/0x560 io_submit_sqes+0x172f/0x2f30 __se_sys_io_uring_enter+0x406/0x41c0 __x64_sys_io_uring_enter+0x11f/0x1a0 x64_sys_call+0x2b54/0x3ba0 do_syscall_64+0xcd/0x1e0 entry_SYSCALL_64_after_hwframe+0x77/0x7f Since an instance of 'struct kiocb' may be passed from the block layer with 'private' field uninitialized, introduce 'ocfs2_iocb_init_rw_locked()' and use it from where 'ocfs2_dio_end_io()' might take care, i.e. in 'ocfs2_file_read_iter()' and 'ocfs2_file_write_iter()'.
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ocfs2文件系统中ocfs2_file_read_iter函数未初始化值。
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 7cdfc3a1c3971c9125c317cb8c2525745851798e ~ 6c8f8d1e595dabd5389817f6d798cc8bd95c40ab -
Linux Linux 2.6.22 -

II. Public POCs for CVE-2024-53155

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III. Intelligence Information for CVE-2024-53155

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Patches & Fixes for CVE-2024-53155 (9)

Same Patch Batch · Linux · 2024-12-24 · 20 CVEs total

CVE-2024-53146 9.1 CRITICAL NFSD: Prevent a potential integer overflow
CVE-2024-53147 7.8 HIGH exfat: fix out-of-bounds access of directory entries
CVE-2024-53148 7.8 HIGH comedi: Flush partial mappings in error case
CVE-2024-53151 7.5 HIGH svcrdma: Address an integer overflow
CVE-2024-53152 PCI: tegra194: Move controller cleanups to pex_ep_event_pex_rst_deassert()
CVE-2024-53163 crypto: qat/qat_420xx - fix off by one in uof_get_name()
CVE-2024-53162 crypto: qat/qat_4xxx - fix off by one in uof_get_name()
CVE-2024-53161 EDAC/bluefield: Fix potential integer overflow
CVE-2024-53160 rcu/kvfree: Fix data-race in __mod_timer / kvfree_call_rcu
CVE-2024-53158 soc: qcom: geni-se: fix array underflow in geni_se_clk_tbl_get()
CVE-2024-53157 firmware: arm_scpi: Check the DVFS OPP count returned by the firmware
CVE-2024-53156 wifi: ath9k: add range check for conn_rsp_epid in htc_connect_service()
CVE-2024-53154 clk: clk-apple-nco: Add NULL check in applnco_probe
CVE-2024-53153 PCI: qcom-ep: Move controller cleanups to qcom_pcie_perst_deassert()
CVE-2024-53240 xen/netfront: fix crash when removing device
CVE-2024-53150 ALSA: usb-audio: Fix out of bounds reads when finding clock sources
CVE-2024-53149 usb: typec: ucsi: glink: fix off-by-one in connector_status
CVE-2024-53145 um: Fix potential integer overflow during physmem setup
CVE-2024-53241 x86/xen: don't do PV iret hypercall through hypercall page

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-53155

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