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| author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2025-11-17 17:43:42 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2025-11-18 15:27:34 +0100 |
| commit | 803abedbd540617f136a2c4d7066ff2e304f016d (patch) | |
| tree | 8161c9a3f4d7f29af41ba72b9875fb005bc1d774 /scripts/lib/abi/helpers.py | |
| parent | 4db1df7a7217827ee7f8a3414932e250f1ac2204 (diff) | |
iov_iter: Add missing speculation barrier to copy_from_user_iter()
The results of "access_ok()" can be mis-speculated. The result is that
the CPU can end speculatively:
if (access_ok(from, size))
// Right here
For the same reason as done in copy_from_user() in commit 74e19ef0ff80
("uaccess: Add speculation barrier to copy_from_user()"), add a speculation
barrier to copy_from_user_iter().
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://patch.msgid.link/6b73e69cc7168c89df4eab0a216e3ed4cca36b0a.1763396724.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'scripts/lib/abi/helpers.py')
0 files changed, 0 insertions, 0 deletions