Hi Greg and Sasha,
Please apply commit 4e4a08868f15 ("crypto: arm64/sm4-gcm - Fix possible crash
in GCM cryption") to 6.2, as it fixes a crash that I see when booting Arch
Linux ARM's aarch64 configuration [1] in QEMU:
[ 1.512110] Unable to handle kernel paging request at virtual address fffffe000024d588
[ 1.512357] Mem abort info:
[ 1.512542] ESR = 0x0000000097c38004
[ 1.512695] EC = 0x25: DABT (current EL), IL = 32 bits
[ 1.512863] SET = 0, FnV = 0
[ 1.512967] EA = 0, S1PTW = 0
[ 1.513075] FSC = 0x04: level 0 translation fault
[ 1.513236] Data abort info:
[ 1.513343] Access size = 8 byte(s)
[ 1.513618] SSE = 0, SRT = 3
[ 1.513721] SF = 1, AR = 0
[ 1.513824] CM = 0, WnR = 0
[ 1.513964] swapper pgtable: 4k pages, 48-bit VAs, pgdp=0000000041ef8000
[ 1.514162] [fffffe000024d588] pgd=0000000000000000, p4d=0000000000000000
[ 1.514932] Internal error: Oops: 0000000097c38004 [#1] PREEMPT SMP
[ 1.515206] Modules linked in:
[ 1.515477] CPU: 0 PID: 113 Comm: cryptomgr_test Not tainted 6.2.1-ARCH #1
[ 1.515755] Hardware name: linux,dummy-virt (DT)
[ 1.516029] pstate: a1400009 (NzCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)
[ 1.516277] pc : kfree+0x30/0xb0
[ 1.516766] lr : skcipher_walk_done+0x198/0x2b0
[ 1.516934] sp : ffff80000ace3820
[ 1.517042] x29: ffff80000ace3820 x28: 0000000000000000 x27: 0000000000000400
[ 1.517316] x26: ffff80000937d880 x25: ffff0000034d0400 x24: ffff0000036efe00
[ 1.517557] x23: ffff800008088730 x22: ffff0000036efd00 x21: ffff80000ace3998
[ 1.517791] x20: 0000000000000000 x19: ffff80000ace3900 x18: ffffffffffffffff
[ 1.518022] x17: 0000000000000000 x16: 0000000000000000 x15: ffffffffffffffff
[ 1.518263] x14: ffff80008ace3ce7 x13: 0000000000000000 x12: 0000000000000000
[ 1.518510] x11: ffff80000ace38c8 x10: ffff80000ace38d0 x9 : 0000000000000001
[ 1.518757] x8 : 0000000000000000 x7 : ffff80000ace38a8 x6 : 0000000000000001
[ 1.518993] x5 : ffff80000ace3998 x4 : fffffc0000000000 x3 : ffff80000ace3b00
[ 1.519242] x2 : 000002000024d580 x1 : ffff800009356218 x0 : fffffe000024d580
[ 1.519549] Call trace:
[ 1.519654] kfree+0x30/0xb0
[ 1.519785] skcipher_walk_done+0x198/0x2b0
[ 1.519931] gcm_crypt+0xd8/0x170
[ 1.520047] gcm_encrypt+0x90/0xbc
[ 1.520153] crypto_aead_encrypt+0x24/0x40
[ 1.520285] test_aead_vec_cfg+0x21c/0x770
[ 1.520422] test_aead+0xb4/0x140
[ 1.520538] alg_test_aead+0x94/0x190
[ 1.520662] alg_test+0x34c/0x520
[ 1.520770] cryptomgr_test+0x24/0x44
[ 1.520889] kthread+0xe4/0xf0
[ 1.520993] ret_from_fork+0x10/0x20
[ 1.521300] Code: b25657e4 d34cfc42 d37ae442 8b040040 (f9400403)
[ 1.521691] ---[ end trace 0000000000000000 ]---
[1]: https://github.com/archlinuxarm/PKGBUILDs/raw/master/core/linux-aarch64/config
Cheers,
Nathan
