In the Linux kernel, the following vulnerability has been resolved: bpf: Propagate error from htab_lock_bucket() to userspace In __htab_map_lookup_and_delete_batch() if htab_lock_bucket() returns -EBUSY, it will go to next bucket. Going to next bucket may not only skip the elements in current bucket silently, but also incur out-of-bound memory access or expose kernel memory to userspace if current bucket_cnt is greater than bucket_size or zero. Fixing it by stopping batch operation and returning -EBUSY when htab_lock_bucket() fails, and the application can retry or skip the busy batch as needed.
| Product | Vendor | Version |
|---|---|---|
| Linux | Linux | < 10.0.19044.3086 |
| Linux | Linux | APQ8053, APQ8096AU, AQT1000, AR8031, CSRA6620, CSRA6640, MDM9150, MDM9640, MDM9650, MSM8953, QCA6174A, QCA6390, QCA6391, QCA6420, QCA6426, QCA6430, QCA6436, QCA6574A, QCA6574AU, QCA9377, QCM4290, QCM6125, QCS405, QCS410, QCS4290, QCS603, QCS605, QCS610, QCS6125, QRB5165, QRB5165M, QRB5165N, Qualcomm215, SA515M, SD429, SD460, SD480, SD662, SD680, SD690 5G, SD695, SD750G, SD765, SD765G, SD768G, SD778G, SD780G, SD855, SD865 5G, SD870, SD888 5G, SDM429W, SDX12, SDX55, SDX55M, SDXR2 5G, SM7250P, SM7325P, WCD9326, WCD9335, WCD9341, WCD9370, WCD9375, WCD9380, WCD9385, WCN3615, WCN3620, WCN3660B, WCN3680, WCN3680B, WCN3950, WCN3980, WCN3988, WCN3990, WCN3991, WCN3998, WCN6740, WCN6750, WCN6850, WCN6851, WCN6855, WCN6856, WSA8810, WSA8815, WSA8830, WSA8835 |