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CVE-2025-37876— netfs: Only create /proc/fs/netfs with CONFIG_PROC_FS

EPSS 0.05% · P15
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I. Basic Information for CVE-2025-37876

Vulnerability Information
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Vulnerability Title
netfs: Only create /proc/fs/netfs with CONFIG_PROC_FS
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: netfs: Only create /proc/fs/netfs with CONFIG_PROC_FS When testing a special config: CONFIG_NETFS_SUPPORTS=y CONFIG_PROC_FS=n The system crashes with something like: [ 3.766197] ------------[ cut here ]------------ [ 3.766484] kernel BUG at mm/mempool.c:560! [ 3.766789] Oops: invalid opcode: 0000 [#1] SMP NOPTI [ 3.767123] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Tainted: G W [ 3.767777] Tainted: [W]=WARN [ 3.767968] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), [ 3.768523] RIP: 0010:mempool_alloc_slab.cold+0x17/0x19 [ 3.768847] Code: 50 fe ff 58 5b 5d 41 5c 41 5d 41 5e 41 5f e9 93 95 13 00 [ 3.769977] RSP: 0018:ffffc90000013998 EFLAGS: 00010286 [ 3.770315] RAX: 000000000000002f RBX: ffff888100ba8640 RCX: 0000000000000000 [ 3.770749] RDX: 0000000000000000 RSI: 0000000000000003 RDI: 00000000ffffffff [ 3.771217] RBP: 0000000000092880 R08: 0000000000000000 R09: ffffc90000013828 [ 3.771664] R10: 0000000000000001 R11: 00000000ffffffea R12: 0000000000092cc0 [ 3.772117] R13: 0000000000000400 R14: ffff8881004b1620 R15: ffffea0004ef7e40 [ 3.772554] FS: 0000000000000000(0000) GS:ffff8881b5f3c000(0000) knlGS:0000000000000000 [ 3.773061] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3.773443] CR2: ffffffff830901b4 CR3: 0000000004296001 CR4: 0000000000770ef0 [ 3.773884] PKRU: 55555554 [ 3.774058] Call Trace: [ 3.774232] <TASK> [ 3.774371] mempool_alloc_noprof+0x6a/0x190 [ 3.774649] ? _printk+0x57/0x80 [ 3.774862] netfs_alloc_request+0x85/0x2ce [ 3.775147] netfs_readahead+0x28/0x170 [ 3.775395] read_pages+0x6c/0x350 [ 3.775623] ? srso_alias_return_thunk+0x5/0xfbef5 [ 3.775928] page_cache_ra_unbounded+0x1bd/0x2a0 [ 3.776247] filemap_get_pages+0x139/0x970 [ 3.776510] ? srso_alias_return_thunk+0x5/0xfbef5 [ 3.776820] filemap_read+0xf9/0x580 [ 3.777054] ? srso_alias_return_thunk+0x5/0xfbef5 [ 3.777368] ? srso_alias_return_thunk+0x5/0xfbef5 [ 3.777674] ? find_held_lock+0x32/0x90 [ 3.777929] ? netfs_start_io_read+0x19/0x70 [ 3.778221] ? netfs_start_io_read+0x19/0x70 [ 3.778489] ? srso_alias_return_thunk+0x5/0xfbef5 [ 3.778800] ? lock_acquired+0x1e6/0x450 [ 3.779054] ? srso_alias_return_thunk+0x5/0xfbef5 [ 3.779379] netfs_buffered_read_iter+0x57/0x80 [ 3.779670] __kernel_read+0x158/0x2c0 [ 3.779927] bprm_execve+0x300/0x7a0 [ 3.780185] kernel_execve+0x10c/0x140 [ 3.780423] ? __pfx_kernel_init+0x10/0x10 [ 3.780690] kernel_init+0xd5/0x150 [ 3.780910] ret_from_fork+0x2d/0x50 [ 3.781156] ? __pfx_kernel_init+0x10/0x10 [ 3.781414] ret_from_fork_asm+0x1a/0x30 [ 3.781677] </TASK> [ 3.781823] Modules linked in: [ 3.782065] ---[ end trace 0000000000000000 ]--- This is caused by the following error path in netfs_init(): if (!proc_mkdir("fs/netfs", NULL)) goto error_proc; Fix this by adding ifdef in netfs_main(), so that /proc/fs/netfs is only created with CONFIG_PROC_FS.
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netfs在无PROC_FS时创建proc条目，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 7eb5b3e3a0a55f2d166ca949ef47ca6e0c704aab ~ 2ef6eea2efce01d1956ace483216f6b6e26330c9 -
LinuxLinux 6.8 -

II. Public POCs for CVE-2025-37876

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III. Intelligence Information for CVE-2025-37876

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Same Patch Batch · Linux · 2025-05-09 · 52 CVEs total

CVE-2025-37873eth: bnxt: fix missing ring index trim on error path
CVE-2025-37889ASoC: ops: Consistently treat platform_max as control value
CVE-2025-37888net/mlx5: Fix null-ptr-deref in mlx5_create_{inner_,}ttc_table()
CVE-2025-37883s390/sclp: Add check for get_zeroed_page()
CVE-2025-37886pds_core: make wait_context part of q_info
CVE-2025-37885KVM: x86: Reset IRTE to host control if *new* route isn't postable
CVE-2025-37884bpf: Fix deadlock between rcu_tasks_trace and event_mutex.
CVE-2025-37887pds_core: handle unsupported PDS_CORE_CMD_FW_CONTROL result
CVE-2025-37875igc: fix PTM cycle trigger logic
CVE-2025-37874net: ngbe: fix memory leak in ngbe_probe() error path
CVE-2025-37877iommu: Clear iommu-dma ops on cleanup
CVE-2025-37872net: txgbe: fix memory leak in txgbe_probe() error path
CVE-2025-37871nfsd: decrease sc_count directly if fail to queue dl_recall
CVE-2025-37870drm/amd/display: prevent hang on link training fail
CVE-2025-37869drm/xe: Use local fence in error path of xe_migrate_clear
CVE-2025-37868drm/xe/userptr: fix notifier vs folio deadlock
CVE-2025-37867RDMA/core: Silence oversized kvmalloc() warning
CVE-2025-37866mlxbf-bootctl: use sysfs_emit_at() in secure_boot_fuse_state_show()
CVE-2025-37865net: dsa: mv88e6xxx: fix -ENOENT when deleting VLANs and MST is unsupported
CVE-2025-37864net: dsa: clean up FDB, MDB, VLAN entries on unbind

Showing top 20 of 52 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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