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CVE-2024-53130— nilfs2: fix null-ptr-deref in block_dirty_buffer tracepoint

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nilfs2文件系统中在使用block_dirty_buffer tracepoint时可能导致的空指针解引用问题。

AI Predicted 5.5 Difficulty: Hard EPSS 0.24% · P14

Possible ATT&CK Techniques 1 AI

T1055 · Process Injection

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 5305cb830834549b9203ad4d009ad5483c5e293f< 7af3309c7a2ef26831a67125b11c34a7e01c1b2a affected
5305cb830834549b9203ad4d009ad5483c5e293f< 0ce59fb1c73fdd5b6028226aeb46259a0cdc0957 affected
5305cb830834549b9203ad4d009ad5483c5e293f< 0a5014ad37c77ac6a2c525137c00a0e1724f6020 affected
5305cb830834549b9203ad4d009ad5483c5e293f< d904e4d845aafbcfd8a40c1df7d999f02f062be8 affected
5305cb830834549b9203ad4d009ad5483c5e293f< 86b19031dbc79abc378dfae357f6ea33ebeb0c95 affected
5305cb830834549b9203ad4d009ad5483c5e293f< b0e4765740040c44039282057ecacd7435d1d2ba affected
5305cb830834549b9203ad4d009ad5483c5e293f< ffc440a76a0f476a7e6ea838ec0dc8e9979944d1 affected
5305cb830834549b9203ad4d009ad5483c5e293f< 2026559a6c4ce34db117d2db8f710fe2a9420d5a affected
… +10 more rows
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I. Basic Information for CVE-2024-53130

Vulnerability Information
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Vulnerability Title
nilfs2: fix null-ptr-deref in block_dirty_buffer tracepoint
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix null-ptr-deref in block_dirty_buffer tracepoint When using the "block:block_dirty_buffer" tracepoint, mark_buffer_dirty() may cause a NULL pointer dereference, or a general protection fault when KASAN is enabled. This happens because, since the tracepoint was added in mark_buffer_dirty(), it references the dev_t member bh->b_bdev->bd_dev regardless of whether the buffer head has a pointer to a block_device structure. In the current implementation, nilfs_grab_buffer(), which grabs a buffer to read (or create) a block of metadata, including b-tree node blocks, does not set the block device, but instead does so only if the buffer is not in the "uptodate" state for each of its caller block reading functions. However, if the uptodate flag is set on a folio/page, and the buffer heads are detached from it by try_to_free_buffers(), and new buffer heads are then attached by create_empty_buffers(), the uptodate flag may be restored to each buffer without the block device being set to bh->b_bdev, and mark_buffer_dirty() may be called later in that state, resulting in the bug mentioned above. Fix this issue by making nilfs_grab_buffer() always set the block device of the super block structure to the buffer head, regardless of the state of the buffer's uptodate flag.
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nilfs2文件系统中在使用block_dirty_buffer tracepoint时可能导致的空指针解引用问题。
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 5305cb830834549b9203ad4d009ad5483c5e293f ~ 7af3309c7a2ef26831a67125b11c34a7e01c1b2a -
Linux Linux 3.9 -

II. Public POCs for CVE-2024-53130

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III. Intelligence Information for CVE-2024-53130

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Patches & Fixes for CVE-2024-53130 (8)

Same Patch Batch · Linux · 2024-12-04 · 16 CVEs total

CVE-2024-53138 9.8 CRITICAL net/mlx5e: kTLS, Fix incorrect page refcounting
CVE-2024-53135 8.8 HIGH KVM: VMX: Bury Intel PT virtualization (guest/host mode) behind CONFIG_BROKEN
CVE-2024-53125 7.8 HIGH bpf: sync_linked_regs() must preserve subreg_def
CVE-2024-53127 7.8 HIGH Revert "mmc: dw_mmc: Fix IDMAC operation with pages bigger than 4K"
CVE-2024-53133 7.8 HIGH drm/amd/display: Handle dml allocation failure to avoid crash
CVE-2024-53139 7.8 HIGH sctp: fix possible UAF in sctp_v6_available()
CVE-2024-53140 7.8 HIGH netlink: terminate outstanding dump on socket close
CVE-2024-53136 7.5 HIGH mm: revert "mm: shmem: fix data-race in shmem_getattr()"
CVE-2024-53126 7.1 HIGH vdpa: solidrun: Fix UB bug with devres
CVE-2024-53128 sched/task_stack: fix object_is_on_stack() for KASAN tagged pointers
CVE-2024-53129 drm/rockchip: vop: Fix a dereferenced before check warning
CVE-2024-53131 nilfs2: fix null-ptr-deref in block_touch_buffer tracepoint
CVE-2024-53132 drm/xe/oa: Fix "Missing outer runtime PM protection" warning
CVE-2024-53134 pmdomain: imx93-blk-ctrl: correct remove path
CVE-2024-53137 ARM: fix cacheflush with PAN

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-53130

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