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CVE-2022-50864— nilfs2: fix shift-out-of-bounds due to too large exponent of block size

AI Predicted 7.8 Difficulty: Moderate EPSS 0.18% · P8

Affected Version Matrix 12

VendorProductVersion RangeStatus
LinuxLinux8a9d2191e9f43bbcd256a9a6871bd73434c83f2f< ec93b5430ec0f60877a5388bb023d60624f9ab9faffected
8a9d2191e9f43bbcd256a9a6871bd73434c83f2f< 8b6ef451b5701b37d9a5905534595776a662edfcaffected
8a9d2191e9f43bbcd256a9a6871bd73434c83f2f< ddb6615a168f97b91175e00eda4c644741cf531caffected
8a9d2191e9f43bbcd256a9a6871bd73434c83f2f< a16731fa1b96226c75bbf18e73513b14fc318360affected
8a9d2191e9f43bbcd256a9a6871bd73434c83f2f< ebeccaaef67a4895d2496ab8d9c2fb8d89201211affected
2.6.30affected
< 2.6.30unaffected
5.10.163≤ 5.10.*unaffected
… +4 more rows
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I. Basic Information for CVE-2022-50864

Vulnerability Information
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Vulnerability Title
nilfs2: fix shift-out-of-bounds due to too large exponent of block size
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix shift-out-of-bounds due to too large exponent of block size If field s_log_block_size of superblock data is corrupted and too large, init_nilfs() and load_nilfs() still can trigger a shift-out-of-bounds warning followed by a kernel panic (if panic_on_warn is set): shift exponent 38973 is too large for 32-bit type 'int' Call Trace: <TASK> dump_stack_lvl+0xcd/0x134 ubsan_epilogue+0xb/0x50 __ubsan_handle_shift_out_of_bounds.cold.12+0x17b/0x1f5 init_nilfs.cold.11+0x18/0x1d [nilfs2] nilfs_mount+0x9b5/0x12b0 [nilfs2] ... This fixes the issue by adding and using a new helper function for getting block size with sanity check.
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，该漏洞源于超级块s_log_block_size字段过大导致移位越界，可能导致内核崩溃。
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 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f ~ ec93b5430ec0f60877a5388bb023d60624f9ab9f -
LinuxLinux 2.6.30 -

II. Public POCs for CVE-2022-50864

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III. Intelligence Information for CVE-2022-50864

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Other References for CVE-2022-50864 (5)

Same Patch Batch · Linux · 2025-12-30 · 244 CVEs total

CVE-2023-541849.8 CRITICALscsi: target: iscsit: Free cmds before session free
CVE-2023-542239.8 CRITICALnet/mlx5e: xsk: Fix invalid buffer access for legacy rq
CVE-2023-542379.8 CRITICALnet/smc: fix potential panic dues to unprotected smc_llc_srv_add_link()
CVE-2023-542579.8 CRITICALnet: macb: fix a memory corruption in extended buffer descriptor mode
CVE-2023-542589.8 CRITICALcifs: fix potential oops in cifs_oplock_break
CVE-2023-542699.8 CRITICALSUNRPC: double free xprt_ctxt while still in use
CVE-2023-542809.8 CRITICALcifs: fix potential race when tree connecting ipc
CVE-2023-542929.8 CRITICALRDMA/irdma: Fix data race on CQP request done
CVE-2023-542039.1 CRITICALksmbd: fix slab-out-of-bounds in init_smb2_rsp_hdr
CVE-2022-508808.8 HIGHwifi: ath10k: add peer map clean up for peer delete in ath10k_sta_state()
CVE-2023-542628.8 HIGHnet/mlx5e: Don't clone flow post action attributes second time
CVE-2023-542148.8 HIGHBluetooth: L2CAP: Fix potential user-after-free
CVE-2023-541628.8 HIGHksmbd: fix possible memory leak in smb2_lock()
CVE-2023-543188.8 HIGHnet/smc: use smc_lgr_list.lock to protect smc_lgr_list.list iterate in smcr_port_add
CVE-2023-542508.2 HIGHksmbd: avoid out of bounds access in decode_preauth_ctxt()
CVE-2023-541648.0 HIGHBluetooth: ISO: fix iso_conn related locking and validity issues
CVE-2023-542067.8 HIGHnet/sched: flower: fix filter idr initialization
CVE-2023-542027.8 HIGHdrm/i915: fix race condition UAF in i915_perf_add_config_ioctl
CVE-2023-542107.8 HIGHBluetooth: hci_sync: Avoid use-after-free in dbg for hci_remove_adv_monitor()
CVE-2023-542437.8 HIGHnetfilter: ebtables: fix table blob use-after-free

Showing top 20 of 244 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2022-50864

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