CVE-2025-22048— LoongArch: BPF: Don't override subprog's return value
Affected Version Matrix 18
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 0c8d50501bc13cacecc19caaddc10db372592a39< 7df2696256a034405d3c5a71b3a4c54725de4404 | affected |
d5d83242a1d778ceb6d8b07c6b491cf7483ca112< 223d565d8892481684091cfbaf3466f2b0e289d3 | affected | ||
73c359d1d356cf10236ccd358bd55edab33e9424< 780628a780b622759d9e5adc76d15432144da1a3 | affected | ||
73c359d1d356cf10236ccd358bd55edab33e9424< 996e90ab446641553e8e21707b38b9709605e0e0 | affected | ||
73c359d1d356cf10236ccd358bd55edab33e9424< 60f3caff1492e5b8616b9578c4bedb5c0a88ed14 | affected | ||
8382e92f90b601acf6d426121e6f4991502e767d | affected | ||
3b75f627b73d96787a493e2f1187543ba9c056a4 | affected | ||
6.6.64< 6.6.87 | affected | ||
| … +10 more rows | |||
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I. Basic Information for CVE-2025-22048
Vulnerability Information
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Vulnerability Title
LoongArch: BPF: Don't override subprog's return value
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: LoongArch: BPF: Don't override subprog's return value The verifier test `calls: div by 0 in subprog` triggers a panic at the ld.bu instruction. The ld.bu insn is trying to load byte from memory address returned by the subprog. The subprog actually set the correct address at the a5 register (dedicated register for BPF return values). But at commit 73c359d1d356 ("LoongArch: BPF: Sign-extend return values") we also sign extended a5 to the a0 register (return value in LoongArch). For function call insn, we later propagate the a0 register back to a5 register. This is right for native calls but wrong for bpf2bpf calls which expect zero-extended return value in a5 register. So only move a0 to a5 for native calls (i.e. non-BPF_PSEUDO_CALL).
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BPF子程序返回值被覆盖，可能导致错误地址加载。
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-2025-22048
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2025-22048 (5)
Same Patch Batch · Linux · 2025-04-16 · 127 CVEs total
| CVE-2025-22040 | 8.8 HIGH | ksmbd: fix session use-after-free in multichannel connection |
| CVE-2025-22041 | 8.8 HIGH | ksmbd: fix use-after-free in ksmbd_sessions_deregister() |
| CVE-2025-22093 | drm/amd/display: avoid NPD when ASIC does not support DMUB | |
| CVE-2025-22107 | net: dsa: sja1105: fix kasan out-of-bounds warning in sja1105_table_delete_entry() | |
| CVE-2025-22106 | vmxnet3: unregister xdp rxq info in the reset path | |
| CVE-2025-22105 | bonding: check xdp prog when set bond mode | |
| CVE-2025-22104 | ibmvnic: Use kernel helpers for hex dumps | |
| CVE-2025-22103 | net: fix NULL pointer dereference in l3mdev_l3_rcv | |
| CVE-2025-22102 | Bluetooth: btnxpuart: Fix kernel panic during FW release | |
| CVE-2025-22100 | drm/panthor: Fix race condition when gathering fdinfo group samples | |
| CVE-2025-22101 | net: libwx: fix Tx L4 checksum | |
| CVE-2025-22099 | drm: xlnx: zynqmp_dpsub: Add NULL check in zynqmp_audio_init | |
| CVE-2025-22097 | drm/vkms: Fix use after free and double free on init error | |
| CVE-2025-22098 | drm: zynqmp_dp: Fix a deadlock in zynqmp_dp_ignore_hpd_set() | |
| CVE-2025-22096 | drm/msm/gem: Fix error code msm_parse_deps() | |
| CVE-2025-22095 | PCI: brcmstb: Fix error path after a call to regulator_bulk_get() | |
| CVE-2025-22094 | powerpc/perf: Fix ref-counting on the PMU 'vpa_pmu' | |
| CVE-2025-22083 | vhost-scsi: Fix handling of multiple calls to vhost_scsi_set_endpoint | |
| CVE-2025-22082 | iio: backend: make sure to NULL terminate stack buffer | |
| CVE-2025-22081 | fs/ntfs3: Fix a couple integer overflows on 32bit systems |
Showing top 20 of 127 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-46300
net: skbuff: preserve shared-frag marker during coalescing - CVE-2026-43503
net: skbuff: propagate shared-frag marker through frag-trans - CVE-2026-43502
net/rds: handle zerocopy send cleanup before the message is - CVE-2026-43501
ipv6: rpl: reserve mac_len headroom when recompressed SRH gr - CVE-2026-43498
accel/ivpu: Disallow re-exporting imported GEM objects
Same vendor: Linux
- CVE-2026-46300
net: skbuff: preserve shared-frag marker during coalescing - CVE-2026-43503
net: skbuff: propagate shared-frag marker through frag-trans - CVE-2026-43502
net/rds: handle zerocopy send cleanup before the message is - CVE-2026-43501
ipv6: rpl: reserve mac_len headroom when recompressed SRH gr - CVE-2026-43498
accel/ivpu: Disallow re-exporting imported GEM objects
V. Comments for CVE-2025-22048
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