add CVE-2025-39946_lts_cos#28
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- Replace magic numbers with named constants (#defines with comments) - Break monolithic main() into descriptive functions - Remove all unused code (DumpHex, PAUSE, commented-out blocks) - Add @sleep(desc=...) annotations on all sleep() calls - Add ROP gadget instruction comments and KERNEL_DEFAULT_BASE - Add struct definitions for pipe_buffer layout offsets - Move globals to local/function scope where appropriate - Add MODULE_SYSFS_OPS JOP chain explanation in exploit.md and code comments - Add KASLR bypass to COS exploit (was missing) - Fix exploit.md grammar and restructure into numbered steps
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The 0x180 value is arbitrary, not specifically chosen to match the kmalloc cache of skb_shinfo->frags. Clarify that AIO pages are simply freed and later reclaimed by kmalloc allocations.
- Remove unused typedefs (keep only u64) and ARRAY_LEN macro - Rename pipe_buffer offset defines to follow style guide (PIPE_BUFFER_OFFS_OPS, PIPE_BUFFER_OFFS_FLAGS) - Fix PIPE_BUF_PRIVATE_OFFSET: value 24 (0x18) is flags, not private (0x20) - Make ktext local in main() and pass to build_and_send_payload() - Move listen_vsockfd/listen_vsock_addr to static locals in vsock_pair() - Rename puaf -> aio_ctx - Add PAYLOAD_SIZE define - Remove commented-out code (// #define KASLR_BYPASS_INTEL) - COS: remove unused unix_fd socketpair, fix outdated header comment - Add clarifying comment on two-pipe fcntl expansion
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