Skip to content

error: kernel-address sanitizer is not supported for this target when targeting 32-bit ARM #1234

Open
Open
error: kernel-address sanitizer is not supported for this target when targeting 32-bit ARM#1234
Labels
• archRelated to a particular arch, `arch/` support in general...

Description

@nathanchance
nathanchance
opened on May 7, 2026

I am not sure if this has been reported before (I did not see anything in the issue tracker) but I see the following error when building for ARCH=arm with CONFIG_RUST=y and CONFIG_KASAN=y (such as with allmodconfig)

$ make -skj"$(nproc)" ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- mrproper allmodconfig prepare
error: kernel-address sanitizer is not supported for this target

error: aborting due to 1 previous error

make[4]: *** [rust/Makefile:654: rust/core.o] Error 1
...

Maybe something like this is needed for now, since I assume the fix for this will be in rustc?

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 71fc5dd4123f..73e6647bea46 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -136,7 +136,7 @@ config ARM
        select MMU_GATHER_RCU_TABLE_FREE if SMP && ARM_LPAE
        select HAVE_REGS_AND_STACK_ACCESS_API
        select HAVE_RSEQ
-       select HAVE_RUST if CPU_LITTLE_ENDIAN && CPU_32v7
+       select HAVE_RUST if CPU_LITTLE_ENDIAN && CPU_32v7 && !KASAN
        select HAVE_STACKPROTECTOR
        select HAVE_SYSCALL_TRACEPOINTS
        select HAVE_UID16

Activity

  1. ojeda commented on May 7, 2026

    @ojeda
    ojeda
    on May 7, 2026
    Member

    Sounds good to me (arm32 is still a bit rough around the edges).

    But maybe I am missing something -- I have Cc'd Christian via email.

  2. ojeda
    added
    • archRelated to a particular arch, `arch/` support in general...
    on May 7, 2026

  3. nathanchance commented on May 11, 2026

    @nathanchance
    nathanchance
    on May 11, 2026
    MemberAuthor

    I submitted https://lore.kernel.org/20260511-arm-avoid-rust-with-kasan-v1-1-24d55f4a900b@kernel.org/ for this.

  4. ojeda commented on May 11, 2026

    @ojeda
    ojeda
    on May 11, 2026
    Member

    Thanks!

  5. ojeda
    added a commit that references this issue on May 14, 2026

    ARM: Do not select HAVE_RUST when KASAN is enabled

    84a0f7c
  6. nihal231998
    added a commit that references this issue on Jun 10, 2026

    ARM: Do not select HAVE_RUST when KASAN is enabled

    457beae
  7. kernel-patches-daemon-bpf
    added 4 commits that reference this issue on Jun 15, 2026

    ARM: Do not select HAVE_RUST when KASAN is enabled

    4e1389f

    ARM: Do not select HAVE_RUST when KASAN is enabled

    9d75f8d

    ARM: Do not select HAVE_RUST when KASAN is enabled

    93143b6

    ARM: Do not select HAVE_RUST when KASAN is enabled

    ee5af77
  8. mj22226
    added 2 commits that reference this issue on Jun 16, 2026

    ARM: Do not select HAVE_RUST when KASAN is enabled

    64e5ccd

    ARM: Do not select HAVE_RUST when KASAN is enabled

    66a34c8
  9. kernel-patches-daemon-bpf
    added 2 commits that reference this issue on Jun 17, 2026

    ARM: Do not select HAVE_RUST when KASAN is enabled

    af4e38b

    ARM: Do not select HAVE_RUST when KASAN is enabled

    4aeafc7
  10. johnny-mnemonic
    added a commit that references this issue on Jun 17, 2026

    ARM: Do not select HAVE_RUST when KASAN is enabled

    650c100

  11. 8 remaining items

  12. kernel-patches-daemon-bpf
    added 6 commits that reference this issue on Jun 18, 2026

    ARM: Do not select HAVE_RUST when KASAN is enabled

    2df7ae2

    ARM: Do not select HAVE_RUST when KASAN is enabled

    12dbb16

    ARM: Do not select HAVE_RUST when KASAN is enabled

    14b23d6

    ARM: Do not select HAVE_RUST when KASAN is enabled

    6650279

    ARM: Do not select HAVE_RUST when KASAN is enabled

    6aaeadc

    ARM: Do not select HAVE_RUST when KASAN is enabled

    c28b3da
  13. mj22226
    added a commit that references this issue on Jun 19, 2026

    ARM: Do not select HAVE_RUST when KASAN is enabled

    5037b2e
  14. 1054009064
    added a commit that references this issue on Jun 19, 2026

    ARM: Do not select HAVE_RUST when KASAN is enabled

    2620c0a
  15. opsiff
    added a commit that references this issue on Jun 22, 2026

    ARM: Do not select HAVE_RUST when KASAN is enabled

    5217b1e
  16. EdwardSro
    added a commit that references this issue on Jun 23, 2026

    ARM: Do not select HAVE_RUST when KASAN is enabled

    575088f
  17. creatorcary
    added a commit that references this issue on Jun 29, 2026

    NAS-141587 / 26.0.0-RC.1 / Update 6.18 kernel to v6.18.37 (by ixhamza) (

    189b2cb
  18. vicamo
    added a commit that references this issue on Jul 19, 2026

    ARM: Do not select HAVE_RUST when KASAN is enabled

    77c3712
  19. tuxedo-bot
    added a commit that references this issue on Aug 4, 2026

    ARM: Do not select HAVE_RUST when KASAN is enabled

    cb917a3
  20. GregDomzalski
    added a commit that references this issue on Sep 2, 2026

    ARM: Do not select HAVE_RUST when KASAN is enabled

    0d44093
  21. cursor
    added a commit that references this issue on Sep 23, 2026

    ARM: Do not select HAVE_RUST when KASAN is enabled

    4dcd1de
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Metadata

Metadata

Assignees

No one assigned

    Labels

    • archRelated to a particular arch, `arch/` support in general...

    Type

    No type

    Projects

    No projects

      Milestone

      No milestone

      Relationships

      None yet

      Development

      No branches or pull requests

      Issue actions