linux/crypto, branch v6.15

crypto: algif_hash - fix double free in hash_accept

2025-05-19T05:44:16Z

If accept(2) is called on socket type algif_hash with MSG_MORE flag set and crypto_ahash_import fails, sk2 is freed. However, it is also freed in af_alg_release, leading to slab-use-after-free error. Fixes: fe869cdb89c9 ("crypto: algif_hash - User-space interface for hash operations") Cc: Signed-off-by: Ivan Pravdin Signed-off-by: Herbert Xu

crypto: scompress - increment scomp_scratch_users when already allocated

2025-04-25T02:33:30Z

Commit ddd0a42671c0 only increments scomp_scratch_users when it was 0, causing a panic when using ipcomp: Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 1 UID: 0 PID: 619 Comm: ping Tainted: G N 6.15.0-rc3-net-00032-ga79be02bba5c #41 PREEMPT(full) Tainted: [N]=TEST Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Arch Linux 1.16.3-1-1 04/01/2014 RIP: 0010:inflate_fast+0x5a2/0x1b90 [...] Call Trace: zlib_inflate+0x2d60/0x6620 deflate_sdecompress+0x166/0x350 scomp_acomp_comp_decomp+0x45f/0xa10 scomp_acomp_decompress+0x21/0x120 acomp_do_req_chain+0x3e5/0x4e0 ipcomp_input+0x212/0x550 xfrm_input+0x2de2/0x72f0 [...] Kernel panic - not syncing: Fatal exception in interrupt Kernel Offset: disabled ---[ end Kernel panic - not syncing: Fatal exception in interrupt ]--- Instead, let's keep the old increment, and decrement back to 0 if the scratch allocation fails. Fixes: ddd0a42671c0 ("crypto: scompress - Fix scratch allocation failure handling") Signed-off-by: Sabrina Dubroca Signed-off-by: Herbert Xu

crypto: scomp - Fix off-by-one bug when calculating last page

2025-04-23T01:32:57Z

Fix off-by-one bug in the last page calculation for src and dst. Reported-by: Nhat Pham Fixes: 2d3553ecb4e3 ("crypto: scomp - Remove support for some non-trivial SG lists") Signed-off-by: Herbert Xu

Revert "crypto: testmgr - Add multibuffer acomp testing"

2025-04-19T03:07:58Z

This reverts commit 99585c2192cb1ce212876e82ef01d1c98c7f4699. Remove the acomp multibuffer tests as they are buggy. Reported-by: Dmitry Antipov Signed-off-by: Herbert Xu

crypto: ahash - Disable request chaining

2025-04-12T01:33:09Z

Disable hash request chaining in case a driver that copies an ahash_request object by hand accidentally triggers chaining. Reported-by: Manorit Chawdhry Fixes: f2ffe5a9183d ("crypto: hash - Add request chaining API") Signed-off-by: Herbert Xu Tested-by: Manorit Chawdhry Signed-off-by: Herbert Xu

crypto: scomp - Fix wild memory accesses in scomp_free_streams

2025-04-12T01:33:09Z

In order to use scomp_free_streams to free the partially allocted streams in the allocation error path, move the alg->stream assignment to the beginning. Also check for error pointers in scomp_free_streams before freeing the ctx. Finally set alg->stream to NULL to not break subsequent attempts to allocate the streams. Fixes: 3d72ad46a23a ("crypto: acomp - Move stream management into scomp layer") Reported-by: syzkaller Co-developed-by: Kuniyuki Iwashima Signed-off-by: Kuniyuki Iwashima Co-developed-by: Herbert Xu Signed-off-by: Herbert Xu

crypto: scomp - Fix null-pointer deref when freeing streams

2025-04-09T13:28:31Z

As the scomp streams are freed when an algorithm is unregistered, it is possible that the algorithm has never been used at all (e.g., an algorithm that does not have a self-test). So test whether the streams exist before freeing them. Reported-by: Sourabh Jain Fixes: 3d72ad46a23a ("crypto: acomp - Move stream management into scomp layer") Signed-off-by: Herbert Xu Tested-by: Sourabh Jain Signed-off-by: Herbert Xu

Merge tag 'v6.15-p2' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

2025-04-02T16:14:59Z

Pull crypto fix from Herbert Xu: - revert the multibuffer hash testing as it is buggy * tag 'v6.15-p2' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: Revert "crypto: testmgr - Add multibuffer hash testing"

Revert "crypto: testmgr - Add multibuffer hash testing"

2025-03-30T01:39:57Z

This reverts commit 8b54e6a8f4156ed43627f40300b0711dc977fbc1. The multibuffer tests has a number of bugs. For example, the SG lists for the filler requests weren't initialised properly, and it fails to take data-keyed algorithms such as poly1305 into account. More importantly, the chaining interface itself is under review. Revert this until the interface is fully settled. Reported-by: Manorit Chawdhry Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-lkp/202503281658.7a078821-lkp@intel.com Signed-off-by: Herbert Xu

Merge tag 'v6.15-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

2025-03-29T17:01:55Z

Pull crypto updates from Herbert Xu: "API: - Remove legacy compression interface - Improve scatterwalk API - Add request chaining to ahash and acomp - Add virtual address support to ahash and acomp - Add folio support to acomp - Remove NULL dst support from acomp Algorithms: - Library options are fuly hidden (selected by kernel users only) - Add Kerberos5 algorithms - Add VAES-based ctr(aes) on x86 - Ensure LZO respects output buffer length on compression - Remove obsolete SIMD fallback code path from arm/ghash-ce Drivers: - Add support for PCI device 0x1134 in ccp - Add support for rk3588's standalone TRNG in rockchip - Add Inside Secure SafeXcel EIP-93 crypto engine support in eip93 - Fix bugs in tegra uncovered by multi-threaded self-test - Fix corner cases in hisilicon/sec2 Others: - Add SG_MITER_LOCAL to sg miter - Convert ubifs, hibernate and xfrm_ipcomp from legacy API to acomp" * tag 'v6.15-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (187 commits) crypto: testmgr - Add multibuffer acomp testing crypto: acomp - Fix synchronous acomp chaining fallback crypto: testmgr - Add multibuffer hash testing crypto: hash - Fix synchronous ahash chaining fallback crypto: arm/ghash-ce - Remove SIMD fallback code path crypto: essiv - Replace memcpy() + NUL-termination with strscpy() crypto: api - Call crypto_alg_put in crypto_unregister_alg crypto: scompress - Fix incorrect stream freeing crypto: lib/chacha - remove unused arch-specific init support crypto: remove obsolete 'comp' compression API crypto: compress_null - drop obsolete 'comp' implementation crypto: cavium/zip - drop obsolete 'comp' implementation crypto: zstd - drop obsolete 'comp' implementation crypto: lzo - drop obsolete 'comp' implementation crypto: lzo-rle - drop obsolete 'comp' implementation crypto: lz4hc - drop obsolete 'comp' implementation crypto: lz4 - drop obsolete 'comp' implementation crypto: deflate - drop obsolete 'comp' implementation crypto: 842 - drop obsolete 'comp' implementation crypto: nx - Migrate to scomp API ...