CVE-2024-43835— virtio_net: Fix napi_skb_cache_put warning
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I. Basic Information for CVE-2024-43835
Vulnerability Information
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Vulnerability Title
virtio_net: Fix napi_skb_cache_put warning
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: virtio_net: Fix napi_skb_cache_put warning After the commit bdacf3e34945 ("net: Use nested-BH locking for napi_alloc_cache.") was merged, the following warning began to appear: WARNING: CPU: 5 PID: 1 at net/core/skbuff.c:1451 napi_skb_cache_put+0x82/0x4b0 __warn+0x12f/0x340 napi_skb_cache_put+0x82/0x4b0 napi_skb_cache_put+0x82/0x4b0 report_bug+0x165/0x370 handle_bug+0x3d/0x80 exc_invalid_op+0x1a/0x50 asm_exc_invalid_op+0x1a/0x20 __free_old_xmit+0x1c8/0x510 napi_skb_cache_put+0x82/0x4b0 __free_old_xmit+0x1c8/0x510 __free_old_xmit+0x1c8/0x510 __pfx___free_old_xmit+0x10/0x10 The issue arises because virtio is assuming it's running in NAPI context even when it's not, such as in the netpoll case. To resolve this, modify virtnet_poll_tx() to only set NAPI when budget is available. Same for virtnet_poll_cleantx(), which always assumed that it was in a NAPI context.
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。目前尚无此漏洞的相关信息，请随时关注CNNVD或厂商公告。
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-2024-43835
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Same Patch Batch · Linux · 2024-08-17 · 109 CVEs total
| CVE-2024-43819 | kvm: s390: Reject memory region operations for ucontrol VMs | |
| CVE-2024-43831 | media: mediatek: vcodec: Handle invalid decoder vsi | |
| CVE-2024-43832 | s390/uv: Don't call folio_wait_writeback() without a folio reference | |
| CVE-2024-43830 | leds: trigger: Unregister sysfs attributes before calling deactivate() | |
| CVE-2024-43829 | drm/qxl: Add check for drm_cvt_mode | |
| CVE-2024-43828 | ext4: fix infinite loop when replaying fast_commit | |
| CVE-2024-43827 | drm/amd/display: Add null check before access structs | |
| CVE-2024-43826 | nfs: pass explicit offset/count to trace events | |
| CVE-2024-43825 | iio: Fix the sorting functionality in iio_gts_build_avail_time_table | |
| CVE-2024-43823 | PCI: keystone: Fix NULL pointer dereference in case of DT error in ks_pcie_setup_rc_app_re | |
| CVE-2024-43824 | PCI: endpoint: pci-epf-test: Make use of cached 'epc_features' in pci_epf_test_core_init() | |
| CVE-2024-43822 | ASoc: PCM6240: Return directly after a failed devm_kzalloc() in pcmdevice_i2c_probe() | |
| CVE-2024-43821 | scsi: lpfc: Fix a possible null pointer dereference | |
| CVE-2024-43820 | dm-raid: Fix WARN_ON_ONCE check for sync_thread in raid_resume | |
| CVE-2024-42317 | mm/huge_memory: avoid PMD-size page cache if needed | |
| CVE-2024-42320 | s390/dasd: fix error checks in dasd_copy_pair_store() | |
| CVE-2024-42319 | mailbox: mtk-cmdq: Move devm_mbox_controller_register() after devm_pm_runtime_enable() | |
| CVE-2024-42318 | landlock: Don't lose track of restrictions on cred_transfer | |
| CVE-2024-42321 | net: flow_dissector: use DEBUG_NET_WARN_ON_ONCE | |
| CVE-2024-42316 | mm/mglru: fix div-by-zero in vmpressure_calc_level() |
Showing top 20 of 109 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-2024-43835
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