Well, I'm not sure. But after further analyse, I think that crypto creates some data on boot which are destroyed only when device is powering off, so it may be false positive.
2013/5/30 Matthias Brugger <[email protected]> > > El 28/05/2013 19:16, "Michał Akaanonim" <[email protected]> va escriure: > > > > > Hi, > > I'm developing custom kernel for my Samsung Galaxy Ace 2 phone. > > First, I'd like to check if there are any bugs, so I built kernel with > kmemleak enabled and I get 10 entries, for example: > > > > unreferenced object 0xce2a2000 (size 8192): > > comm "vold", pid 1855, jiffies 4294942835 (age 1394.240s) > > hex dump (first 32 bytes): > > 00 00 00 00 24 7e 50 c0 d0 7d 50 c0 7c 7d 50 c0 ....$~P..}P.|}P. > > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > > backtrace: > > [<c03f4a00>] create_object+0x10c/0x24c > > [<c08e99f0>] kmemleak_alloc+0x6c/0xd0 > > [<c03f1a54>] __kmalloc+0x178/0x27c > > [<c0507988>] __crypto_alloc_tfm+0x4c/0x140 > > [<c05086b8>] crypto_spawn_tfm+0x78/0xcc > > [<c0511dc0>] crypto_cbc_init_tfm+0x2c/0x44 > > [<c05079dc>] __crypto_alloc_tfm+0xa0/0x140 > > [<c05086b8>] crypto_spawn_tfm+0x78/0xcc > > [<c050b968>] skcipher_geniv_init+0x2c/0x54 > > [<c050cd68>] eseqiv_init+0x50/0x54 > > [<c05079dc>] __crypto_alloc_tfm+0xa0/0x140 > > [<c050aee0>] crypto_alloc_ablkcipher+0x68/0xa8 > > [<c06b82b0>] crypt_ctr+0x294/0x8a0 > > [<c06b08c8>] dm_table_add_target+0xf8/0x260 > > [<c06b3ffc>] table_load+0x114/0x2c4 > > [<c06b37d4>] dm_ctl_ioctl+0x1d0/0x2cc > > > > I noticed that in 6 of 10 entries there are dm_ctl_ioctl, table_load and > dm_table_add_target functions. So I think something is wrong with MD driver > but I compared source of this driver with other find on net and there > aren't any differences. > > Source code of my kernel can be found here: > https://github.com/hckk/GT-I8160_Kernel > > > > Thanks for any help. > > Could it be false positives? > > Regards, > Matthias > > > Greetings, Michal. > > > > _______________________________________________ > > Kernelnewbies mailing list > > [email protected] > > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies > > >
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