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Sat, 11 Oct 2025 09:01:41 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id aMrfDPUc6miCGAAAD6G6ig (envelope-from ); Sat, 11 Oct 2025 09:01:41 +0000 Message-ID: <903ea271-9413-40ed-93cd-104062c18a84@suse.cz> Date: Sat, 11 Oct 2025 11:01:40 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird From: Vlastimil Babka Subject: [GIT PULL] slab hotfix for 6.18-rc1 To: Linus Torvalds Cc: Andrew Morton , Harry Yoo , David Rientjes , Christoph Lameter , Roman Gushchin , "linux-mm@kvack.org" , LKML , Phil Auld Content-Language: en-US Autocrypt: addr=vbabka@suse.cz; keydata= xsFNBFZdmxYBEADsw/SiUSjB0dM+vSh95UkgcHjzEVBlby/Fg+g42O7LAEkCYXi/vvq31JTB KxRWDHX0R2tgpFDXHnzZcQywawu8eSq0LxzxFNYMvtB7sV1pxYwej2qx9B75qW2plBs+7+YB 87tMFA+u+L4Z5xAzIimfLD5EKC56kJ1CsXlM8S/LHcmdD9Ctkn3trYDNnat0eoAcfPIP2OZ+ 9oe9IF/R28zmh0ifLXyJQQz5ofdj4bPf8ecEW0rhcqHfTD8k4yK0xxt3xW+6Exqp9n9bydiy tcSAw/TahjW6yrA+6JhSBv1v2tIm+itQc073zjSX8OFL51qQVzRFr7H2UQG33lw2QrvHRXqD Ot7ViKam7v0Ho9wEWiQOOZlHItOOXFphWb2yq3nzrKe45oWoSgkxKb97MVsQ+q2SYjJRBBH4 8qKhphADYxkIP6yut/eaj9ImvRUZZRi0DTc8xfnvHGTjKbJzC2xpFcY0DQbZzuwsIZ8OPJCc LM4S7mT25NE5kUTG/TKQCk922vRdGVMoLA7dIQrgXnRXtyT61sg8PG4wcfOnuWf8577aXP1x 6mzw3/jh3F+oSBHb/GcLC7mvWreJifUL2gEdssGfXhGWBo6zLS3qhgtwjay0Jl+kza1lo+Cv BB2T79D4WGdDuVa4eOrQ02TxqGN7G0Biz5ZLRSFzQSQwLn8fbwARAQABzSBWbGFzdGltaWwg QmFia2EgPHZiYWJrYUBzdXNlLmN6PsLBlAQTAQoAPgIbAwULCQgHAwUVCgkICwUWAgMBAAIe AQIXgBYhBKlA1DSZLC6OmRA9UCJPp+fMgqZkBQJnyBr8BQka0IFQAAoJECJPp+fMgqZkqmMQ AIbGN95ptUMUvo6aAdhxaOCHXp1DfIBuIOK/zpx8ylY4pOwu3GRe4dQ8u4XS9gaZ96Gj4bC+ jwWcSmn+TjtKW3rH1dRKopvC07tSJIGGVyw7ieV/5cbFffA8NL0ILowzVg8w1ipnz1VTkWDr 2zcfslxJsJ6vhXw5/npcY0ldeC1E8f6UUoa4eyoskd70vO0wOAoGd02ZkJoox3F5ODM0kjHu Y97VLOa3GG66lh+ZEelVZEujHfKceCw9G3PMvEzyLFbXvSOigZQMdKzQ8D/OChwqig8wFBmV QCPS4yDdmZP3oeDHRjJ9jvMUKoYODiNKsl2F+xXwyRM2qoKRqFlhCn4usVd1+wmv9iLV8nPs 2Db1ZIa49fJet3Sk3PN4bV1rAPuWvtbuTBN39Q/6MgkLTYHb84HyFKw14Rqe5YorrBLbF3rl M51Dpf6Egu1yTJDHCTEwePWug4XI11FT8lK0LNnHNpbhTCYRjX73iWOnFraJNcURld1jL1nV r/LRD+/e2gNtSTPK0Qkon6HcOBZnxRoqtazTU6YQRmGlT0v+rukj/cn5sToYibWLn+RoV1CE Qj6tApOiHBkpEsCzHGu+iDQ1WT0Idtdynst738f/uCeCMkdRu4WMZjteQaqvARFwCy3P/jpK uvzMtves5HvZw33ZwOtMCgbpce00DaET4y/UzsBNBFsZNTUBCACfQfpSsWJZyi+SHoRdVyX5 J6rI7okc4+b571a7RXD5UhS9dlVRVVAtrU9ANSLqPTQKGVxHrqD39XSw8hxK61pw8p90pg4G /N3iuWEvyt+t0SxDDkClnGsDyRhlUyEWYFEoBrrCizbmahOUwqkJbNMfzj5Y7n7OIJOxNRkB IBOjPdF26dMP69BwePQao1M8Acrrex9sAHYjQGyVmReRjVEtv9iG4DoTsnIR3amKVk6si4Ea X/mrapJqSCcBUVYUFH8M7bsm4CSxier5ofy8jTEa/CfvkqpKThTMCQPNZKY7hke5qEq1CBk2 wxhX48ZrJEFf1v3NuV3OimgsF2odzieNABEBAAHCwXwEGAEKACYCGwwWIQSpQNQ0mSwujpkQ PVAiT6fnzIKmZAUCZ8gcVAUJFhTonwAKCRAiT6fnzIKmZLY8D/9uo3Ut9yi2YCuASWxr7QQZ lJCViArjymbxYB5NdOeC50/0gnhK4pgdHlE2MdwF6o34x7TPFGpjNFvycZqccSQPJ/gibwNA zx3q9vJT4Vw+YbiyS53iSBLXMweeVV1Jd9IjAoL+EqB0cbxoFXvnjkvP1foiiF5r73jCd4PR rD+GoX5BZ7AZmFYmuJYBm28STM2NA6LhT0X+2su16f/HtummENKcMwom0hNu3MBNPUOrujtW khQrWcJNAAsy4yMoJ2Lw51T/5X5Hc7jQ9da9fyqu+phqlVtn70qpPvgWy4HRhr25fCAEXZDp xG4RNmTm+pqorHOqhBkI7wA7P/nyPo7ZEc3L+ZkQ37u0nlOyrjbNUniPGxPxv1imVq8IyycG AN5FaFxtiELK22gvudghLJaDiRBhn8/AhXc642/Z/yIpizE2xG4KU4AXzb6C+o7LX/WmmsWP Ly6jamSg6tvrdo4/e87lUedEqCtrp2o1xpn5zongf6cQkaLZKQcBQnPmgHO5OG8+50u88D9I rywqgzTUhHFKKF6/9L/lYtrNcHU8Z6Y4Ju/MLUiNYkmtrGIMnkjKCiRqlRrZE/v5YFHbayRD dJKXobXTtCBYpLJM4ZYRpGZXne/FAtWNe4KbNJJqxMvrTOrnIatPj8NhBVI0RSJRsbilh6TE m6M14QORSWTLRg== Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: 26FD1180009 X-Stat-Signature: unmw6kxua1cqry99tu5t9tfg3kcn1995 X-Rspam-User: X-HE-Tag: 1760173302-202688 X-HE-Meta: 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 cWSTdweN t8sqSlgxy6csh5IQKtmXR/lMtn5HxsmcwQrrBj6Vn2RqV6ohUE+8kqTr8PIPjdi6boY6tf3ZZk/jexlV6PiAviiFIAFR7mzkYjkG+zhV9FfSgozkEHiRJTj1TVSJWmFZuFUjK112Sa2nM/kchshMYSPjj/eYtuXBqf3lo8nsaxy/OiuY7DW7I80f7FCsJKMo5XjGpMQTmtfLmuC1HqSCODkqnK6OI7QPPSkRI4Om8nJBuIbQw7RHcHH/iU1A6+HIvZou1aPjNWjFXj1nxtGNXSTqobJmZIhvxRiFz/H07lJzbC3XR/v448LNJuofnms8JGD2rQhnp8VUW6sgHgUQr4/f+1oPr5CjJ9SUk X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hi Linus, here's the NULL pointer deref hotfix in the form of a PR git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab.git tags/slab-for-6.18-rc1-hotfix Obviously it wasn't in -next yet and was just sent out formally for review, and it's weekend so that's an unfortunate timing. Releasing rc1 might however mean more exposure to such memoryless node systems so I didn't want to delay. You can decide to pull or wait. Sorry for the trouble and thanks, Vlastimil ====================================== * Fix for NULL pointer dereferences in sheaves code on some systems with memoryless nodes (Vlastimil Babka) ---------------------------------------------------------------- Vlastimil Babka (1): slab: fix barn NULL pointer dereference on memoryless nodes mm/slub.c | 65 +++++++++++++++++++++++++++++++++++++++++++++++++-------------- 1 file changed, 51 insertions(+), 14 deletions(-)