Re: Please apply 4e4a08868f15897ca236528771c3733fded42c62 to linux-6.2.y

[Greg Kroah-Hartman <gregkh@linuxfoundation.org>]

On Tue, Feb 28, 2023 at 09:17:16AM -0700, Nathan Chancellor wrote:
> 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

Now queued up, thanks.

greg k-h