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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-10-26 13:35:46 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-10-26 13:35:46 +0300 |
| commit | f877bee5ea0b56c39cd0a243e113a577b5a4ef92 (patch) | |
| tree | 2efb35dfd80b54cbdffead5f4d4f115da4fbe7a2 | |
| parent | 4fac2407f809e2ccc846bcce1d62ebbf7b0a1cd2 (diff) | |
| parent | ac49303d9ef0ad98b79867a380ef23480e48870b (diff) | |
| download | linux-f877bee5ea0b56c39cd0a243e113a577b5a4ef92.tar.xz | |
Merge tag 's390-5.4-5' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Vasily Gorbik:
- Add R_390_GLOB_DAT relocation type support. This fixes boot problem
on linux-next.
- Fix memory leak in zcrypt
* tag 's390-5.4-5' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/kaslr: add support for R_390_GLOB_DAT relocation type
s390/zcrypt: fix memleak at release
| -rw-r--r-- | arch/s390/boot/startup.c | 14 | ||||
| -rw-r--r-- | arch/s390/kernel/machine_kexec_reloc.c | 1 | ||||
| -rw-r--r-- | drivers/s390/crypto/zcrypt_api.c | 3 |
3 files changed, 13 insertions, 5 deletions
diff --git a/arch/s390/boot/startup.c b/arch/s390/boot/startup.c index 596ca7cc4d7b..5367950510f6 100644 --- a/arch/s390/boot/startup.c +++ b/arch/s390/boot/startup.c @@ -101,10 +101,18 @@ static void handle_relocs(unsigned long offset) dynsym = (Elf64_Sym *) vmlinux.dynsym_start; for (rela = rela_start; rela < rela_end; rela++) { loc = rela->r_offset + offset; - val = rela->r_addend + offset; + val = rela->r_addend; r_sym = ELF64_R_SYM(rela->r_info); - if (r_sym) - val += dynsym[r_sym].st_value; + if (r_sym) { + if (dynsym[r_sym].st_shndx != SHN_UNDEF) + val += dynsym[r_sym].st_value + offset; + } else { + /* + * 0 == undefined symbol table index (STN_UNDEF), + * used for R_390_RELATIVE, only add KASLR offset + */ + val += offset; + } r_type = ELF64_R_TYPE(rela->r_info); rc = arch_kexec_do_relocs(r_type, (void *) loc, val, 0); if (rc) diff --git a/arch/s390/kernel/machine_kexec_reloc.c b/arch/s390/kernel/machine_kexec_reloc.c index 3b664cb3ec4d..d5035de9020e 100644 --- a/arch/s390/kernel/machine_kexec_reloc.c +++ b/arch/s390/kernel/machine_kexec_reloc.c @@ -27,6 +27,7 @@ int arch_kexec_do_relocs(int r_type, void *loc, unsigned long val, *(u32 *)loc = val; break; case R_390_64: /* Direct 64 bit. */ + case R_390_GLOB_DAT: *(u64 *)loc = val; break; case R_390_PC16: /* PC relative 16 bit. */ diff --git a/drivers/s390/crypto/zcrypt_api.c b/drivers/s390/crypto/zcrypt_api.c index 45bdb47f84c1..9157e728a362 100644 --- a/drivers/s390/crypto/zcrypt_api.c +++ b/drivers/s390/crypto/zcrypt_api.c @@ -522,8 +522,7 @@ static int zcrypt_release(struct inode *inode, struct file *filp) if (filp->f_inode->i_cdev == &zcrypt_cdev) { struct zcdn_device *zcdndev; - if (mutex_lock_interruptible(&ap_perms_mutex)) - return -ERESTARTSYS; + mutex_lock(&ap_perms_mutex); zcdndev = find_zcdndev_by_devt(filp->f_inode->i_rdev); mutex_unlock(&ap_perms_mutex); if (zcdndev) { |