| Message ID | 20231213134027.155327-1-alexghiti@rivosinc.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | Fix WX mappings in the linear mapping after module unloading | expand |
Hello: This series was applied to riscv/linux.git (fixes) by Palmer Dabbelt <palmer@rivosinc.com>: On Wed, 13 Dec 2023 14:40:25 +0100 you wrote: > I fell onto a bunch of WX mappings in the linear mapping after a module > gets unloaded, this is because our module_alloc() does not set the > VM_FLUSH_RESET_PERMS flag (patch 1) and that > set_direct_map_default_noflush() must clean the X bit (patch 2). > > Note that the Fixes tags are correct but patch 2 will fail to apply > since a change in this function just landed in 6.7. > > [...] Here is the summary with links: - [-fixes,1/2] riscv: Fix module_alloc() that did not reset the linear mapping permissions https://git.kernel.org/riscv/c/2f748fa7b60a - [-fixes,2/2] riscv: Fix set_direct_map_default_noflush() to reset _PAGE_EXEC https://git.kernel.org/riscv/c/3b5c14361d61 You are awesome, thank you!
I fell onto a bunch of WX mappings in the linear mapping after a module gets unloaded, this is because our module_alloc() does not set the VM_FLUSH_RESET_PERMS flag (patch 1) and that set_direct_map_default_noflush() must clean the X bit (patch 2). Note that the Fixes tags are correct but patch 2 will fail to apply since a change in this function just landed in 6.7. Alexandre Ghiti (2): riscv: Fix module_alloc() that did not reset the linear mapping permissions riscv: Fix set_direct_map_default_noflush() to reset _PAGE_EXEC arch/riscv/kernel/module.c | 3 ++- arch/riscv/mm/pageattr.c | 2 +- 2 files changed, 3 insertions(+), 2 deletions(-)