CVE-2025-40196— fs: quota: create dedicated workqueue for quota_release_work
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2025-40196
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
fs: quota: create dedicated workqueue for quota_release_work
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: fs: quota: create dedicated workqueue for quota_release_work There is a kernel panic due to WARN_ONCE when panic_on_warn is set. This issue occurs when writeback is triggered due to sync call for an opened file(ie, writeback reason is WB_REASON_SYNC). When f2fs balance is needed at sync path, flush for quota_release_work is triggered. By default quota_release_work is queued to "events_unbound" queue which does not have WQ_MEM_RECLAIM flag. During f2fs balance "writeback" workqueue tries to flush quota_release_work causing kernel panic due to MEM_RECLAIM flag mismatch errors. This patch creates dedicated workqueue with WQ_MEM_RECLAIM flag for work quota_release_work. ------------[ cut here ]------------ WARNING: CPU: 4 PID: 14867 at kernel/workqueue.c:3721 check_flush_dependency+0x13c/0x148 Call trace: check_flush_dependency+0x13c/0x148 __flush_work+0xd0/0x398 flush_delayed_work+0x44/0x5c dquot_writeback_dquots+0x54/0x318 f2fs_do_quota_sync+0xb8/0x1a8 f2fs_write_checkpoint+0x3cc/0x99c f2fs_gc+0x190/0x750 f2fs_balance_fs+0x110/0x168 f2fs_write_single_data_page+0x474/0x7dc f2fs_write_data_pages+0x7d0/0xd0c do_writepages+0xe0/0x2f4 __writeback_single_inode+0x44/0x4ac writeback_sb_inodes+0x30c/0x538 wb_writeback+0xf4/0x440 wb_workfn+0x128/0x5d4 process_scheduled_works+0x1c4/0x45c worker_thread+0x32c/0x3e8 kthread+0x11c/0x1b0 ret_from_fork+0x10/0x20 Kernel panic - not syncing: kernel: panic_on_warn set ...
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，该漏洞源于工作队列标志不匹配，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
II. Public POCs for CVE-2025-40196
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2025-40196
请登录查看更多情报信息。
Same Patch Batch · Linux · 2025-11-12 · 96 CVEs total
| CVE-2025-40175 | idpf: cleanup remaining SKBs in PTP flows | |
| CVE-2025-40170 | net: use dst_dev_rcu() in sk_setup_caps() | |
| CVE-2025-40171 | nvmet-fc: move lsop put work to nvmet_fc_ls_req_op | |
| CVE-2025-40167 | ext4: detect invalid INLINE_DATA + EXTENTS flag combination | |
| CVE-2025-40164 | usbnet: Fix using smp_processor_id() in preemptible code warnings | |
| CVE-2025-40162 | ASoC: amd/sdw_utils: avoid NULL deref when devm_kasprintf() fails | |
| CVE-2025-40163 | sched/deadline: Stop dl_server before CPU goes offline | |
| CVE-2025-40161 | mailbox: zynqmp-ipi: Fix SGI cleanup on unbind | |
| CVE-2025-40166 | drm/xe/guc: Check GuC running state before deregistering exec queue | |
| CVE-2025-40174 | x86/mm: Fix SMP ordering in switch_mm_irqs_off() | |
| CVE-2025-40172 | accel/qaic: Treat remaining == 0 as error in find_and_map_user_pages() | |
| CVE-2025-40176 | tls: wait for pending async decryptions if tls_strp_msg_hold fails | |
| CVE-2025-40173 | net/ip6_tunnel: Prevent perpetual tunnel growth | |
| CVE-2025-40177 | accel/qaic: Fix bootlog initialization ordering | |
| CVE-2025-40178 | pid: Add a judgment for ns null in pid_nr_ns | |
| CVE-2025-40179 | ext4: verify orphan file size is not too big | |
| CVE-2025-40180 | mailbox: zynqmp-ipi: Fix out-of-bounds access in mailbox cleanup loop | |
| CVE-2025-40181 | x86/kvm: Force legacy PCI hole to UC when overriding MTRRs for TDX/SNP | |
| CVE-2025-40183 | bpf: Fix metadata_dst leak __bpf_redirect_neigh_v{4,6} | |
| CVE-2025-40182 | crypto: skcipher - Fix reqsize handling |
Showing top 20 of 96 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
Same vendor: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
V. Comments for CVE-2025-40196
No comments yet