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generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2025-01-24 08:51:52 +0000
sts seem unaffected, while an explicit test using the module triggers it) Unable to handle kernel NULL pointer dereference at virtual address 00000000 ... [<ffff000008431d84>] __memcpy+0x84/0x180 [<ffff0000083ec0d0>] skcipher_walk_done+0x328/0x340 [<ffff0000080c5c04>] ctr_encrypt+0x84/0x100 [<ffff000008406d60>] simd_skcipher_encrypt+0x88/0x98 [<ffff0000083fa05c>] crypto_rfc3686_crypt+0x8c/0x98 [<ffff0000009b0900>] test_skcipher_speed+0x518/0x820 [tcrypt] [<ffff0000009b31c0>] do_test+0x1408/0x3b70 [tcrypt] [<ffff0000009bd050>] tcrypt_mod_init+0x50/0x1000 [tcrypt] [<ffff0000080838f4>] do_one_initcall+0x44/0x138 [<ffff0000081aee60>] do_init_module+0x68/0x1e0 [<ffff0000081524d0>] load_module+0x1fd0/0x2458 [<ffff000008152c38>] SyS_finit_module+0xe0/0xf0 [<ffff0000080836f0>] el0_svc_naked+0x24/0x28 This is due to the fact that skcipher_done_slow() may be entered with walk->buffer unset. Since skcipher_walk_done() already deals with the case where walk->buffer == walk->page, it appears to be the intention that walk->buffer point to walk->page after skcipher_next_slow(), so ensure that is the case. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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