From 846cdbdbf965fc50478bcc4c6436e3dc6a489f3f Mon Sep 17 00:00:00 2001 From: Chris Xiong Date: Thu, 14 Oct 2021 19:01:18 -0400 Subject: Initial commit. --- .../chromium/files/chromium-92-glibc-2.33.patch | 146 +++++++++++++++++++++ 1 file changed, 146 insertions(+) create mode 100644 www-client/chromium/files/chromium-92-glibc-2.33.patch (limited to 'www-client/chromium/files/chromium-92-glibc-2.33.patch') diff --git a/www-client/chromium/files/chromium-92-glibc-2.33.patch b/www-client/chromium/files/chromium-92-glibc-2.33.patch new file mode 100644 index 0000000..3b2ec6b --- /dev/null +++ b/www-client/chromium/files/chromium-92-glibc-2.33.patch @@ -0,0 +1,146 @@ +diff --git a/sandbox/linux/seccomp-bpf-helpers/baseline_policy.cc b/sandbox/linux/seccomp-bpf-helpers/baseline_policy.cc +index 05c39f0f5..3a9d6f359 100644 +--- a/sandbox/linux/seccomp-bpf-helpers/baseline_policy.cc ++++ b/sandbox/linux/seccomp-bpf-helpers/baseline_policy.cc +@@ -280,6 +280,18 @@ ResultExpr EvaluateSyscallImpl(int fs_denied_errno, + return RestrictKillTarget(current_pid, sysno); + } + ++#if defined(__NR_newfstatat) ++ if (sysno == __NR_newfstatat) { ++ return RewriteFstatatSIGSYS(); ++ } ++#endif ++ ++#if defined(__NR_fstatat64) ++ if (sysno == __NR_fstatat64) { ++ return RewriteFstatatSIGSYS(); ++ } ++#endif ++ + // memfd_create is considered a file system syscall which below will be denied + // with fs_denied_errno, we need memfd_create for Mojo shared memory channels. + if (sysno == __NR_memfd_create) { +diff --git a/sandbox/linux/seccomp-bpf-helpers/sigsys_handlers.cc b/sandbox/linux/seccomp-bpf-helpers/sigsys_handlers.cc +index 76eb32493..09aa3f0b1 100644 +--- a/sandbox/linux/seccomp-bpf-helpers/sigsys_handlers.cc ++++ b/sandbox/linux/seccomp-bpf-helpers/sigsys_handlers.cc +@@ -6,6 +6,8 @@ + + #include "sandbox/linux/seccomp-bpf-helpers/sigsys_handlers.h" + ++#include ++#include + #include + #include + #include +@@ -355,6 +357,35 @@ intptr_t SIGSYSSchedHandler(const struct arch_seccomp_data& args, + return -ENOSYS; + } + ++intptr_t SIGSYSFstatatHandler(const struct arch_seccomp_data& args, ++ void* aux) { ++ switch (args.nr) { ++#if defined(__NR_newfstatat) ++ case __NR_newfstatat: ++#endif ++#if defined(__NR_fstatat64) ++ case __NR_fstatat64: ++#endif ++#if defined(__NR_newfstatat) || defined(__NR_fstatat64) ++ if (*reinterpret_cast(args.args[1]) == '\0' ++ && args.args[3] == static_cast(AT_EMPTY_PATH)) { ++ return sandbox::sys_fstat64(static_cast(args.args[0]), ++ reinterpret_cast(args.args[2])); ++ } else { ++ errno = EACCES; ++ return -1; ++ } ++ break; ++#endif ++ } ++ ++ CrashSIGSYS_Handler(args, aux); ++ ++ // Should never be reached. ++ RAW_CHECK(false); ++ return -ENOSYS; ++} ++ + bpf_dsl::ResultExpr CrashSIGSYS() { + return bpf_dsl::Trap(CrashSIGSYS_Handler, NULL); + } +@@ -387,6 +418,10 @@ bpf_dsl::ResultExpr RewriteSchedSIGSYS() { + return bpf_dsl::Trap(SIGSYSSchedHandler, NULL); + } + ++bpf_dsl::ResultExpr RewriteFstatatSIGSYS() { ++ return bpf_dsl::Trap(SIGSYSFstatatHandler, NULL); ++} ++ + void AllocateCrashKeys() { + #if !defined(OS_NACL_NONSFI) + if (seccomp_crash_key) +diff --git a/sandbox/linux/seccomp-bpf-helpers/sigsys_handlers.h b/sandbox/linux/seccomp-bpf-helpers/sigsys_handlers.h +index 7a958b93b..d0bfab74b 100644 +--- a/sandbox/linux/seccomp-bpf-helpers/sigsys_handlers.h ++++ b/sandbox/linux/seccomp-bpf-helpers/sigsys_handlers.h +@@ -62,6 +62,10 @@ SANDBOX_EXPORT intptr_t SIGSYSPtraceFailure(const arch_seccomp_data& args, + // sched_setparam(), sched_setscheduler() + SANDBOX_EXPORT intptr_t SIGSYSSchedHandler(const arch_seccomp_data& args, + void* aux); ++// If the fstatat syscall is actually a disguised fstat, calls the regular fstat ++// syscall, otherwise, crashes in the same way as CrashSIGSYS_Handler. ++SANDBOX_EXPORT intptr_t SIGSYSFstatatHandler(const struct arch_seccomp_data& args, ++ void* aux); + + // Variants of the above functions for use with bpf_dsl. + SANDBOX_EXPORT bpf_dsl::ResultExpr CrashSIGSYS(); +@@ -72,6 +76,7 @@ SANDBOX_EXPORT bpf_dsl::ResultExpr CrashSIGSYSKill(); + SANDBOX_EXPORT bpf_dsl::ResultExpr CrashSIGSYSFutex(); + SANDBOX_EXPORT bpf_dsl::ResultExpr CrashSIGSYSPtrace(); + SANDBOX_EXPORT bpf_dsl::ResultExpr RewriteSchedSIGSYS(); ++SANDBOX_EXPORT bpf_dsl::ResultExpr RewriteFstatatSIGSYS(); + + // Allocates a crash key so that Seccomp information can be recorded. + void AllocateCrashKeys(); +diff --git a/sandbox/linux/services/syscall_wrappers.cc b/sandbox/linux/services/syscall_wrappers.cc +index fcfd2aa12..5396b36da 100644 +--- a/sandbox/linux/services/syscall_wrappers.cc ++++ b/sandbox/linux/services/syscall_wrappers.cc +@@ -261,4 +261,13 @@ int sys_sigaction(int signum, + + #endif // defined(MEMORY_SANITIZER) + ++SANDBOX_EXPORT int sys_fstat64(int fd, struct stat64 *buf) ++{ ++#if defined(__NR_fstat64) ++ return syscall(__NR_fstat64, fd, buf); ++#else ++ return syscall(__NR_fstat, fd, buf); ++#endif ++} ++ + } // namespace sandbox +diff --git a/sandbox/linux/services/syscall_wrappers.h b/sandbox/linux/services/syscall_wrappers.h +index 1975bfbd8..ed7ee5a1c 100644 +--- a/sandbox/linux/services/syscall_wrappers.h ++++ b/sandbox/linux/services/syscall_wrappers.h +@@ -17,6 +17,7 @@ struct sock_fprog; + struct rlimit64; + struct cap_hdr; + struct cap_data; ++struct stat64; + + namespace sandbox { + +@@ -84,6 +85,9 @@ SANDBOX_EXPORT int sys_sigaction(int signum, + const struct sigaction* act, + struct sigaction* oldact); + ++// Recent glibc rewrites fstat to fstatat. ++SANDBOX_EXPORT int sys_fstat64(int fd, struct stat64 *buf); ++ + } // namespace sandbox + + #endif // SANDBOX_LINUX_SERVICES_SYSCALL_WRAPPERS_H_ -- cgit v1.2.3